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Eschmeyer's Catalog of Fishes
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Species in the family or subfamily Gastromyzontidae: [ 165 ] records


aequabilis, Gastromyzon Tan [H. H.] 2006:147, Figs. 89-91 [The Borneo Suckers; ref. 28716] Unnamed stream at kilometer 111 on main line west after turnoff to Borneo Rainforest Lodge, 5°01'06.0"N, 117°32'38.4"E, Kuamut, Danum Valley, Lahad Datu, Sabah, Malaysia. Holotype: MUS uncat. Paratypes: MUS uncat. (2); ZRC 41572 (2), 41573 (1), 47090 (4). •Valid as Gastromyzon aequabilis Tan 2006-- (Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon aequabilis Tan 2006. Gastromyzontidae. Distribution: Kuamut drainage of the Kinabatangan River basin, eastern Sabah, Malaysia. Habitat: freshwater.

aeroides, Gastromyzon Tan [H. H.] & Sulaiman [Z. H.] 2006:9, Figs. 3-4 [Zootaxa No. 1117; ref. 28496] Sungai Malamus, about 9 kilometers into track, tributary to Mengalong River, 4°59.120'N, 115°37.581'E, Siptang, Mengalong River basin, Sabah, elevation 50 meters. Holotype: MUS uncat. Paratypes: MUS uncat. (3); ZRC 47021 (4), 47022 (7). Plus non-type material. Second author also seen as Zohrah. The species name is a noun. •Valid as Gastromyzon aeroides Tan & Sulaiman 2006 -- (Tan 2006:86 [ref. 28716], Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Gastromyzon aeroides Tan & Sulaiman 2006. Gastromyzontidae. Distribution: Western Sabah and Brunei Darussalam, Borneo. Habitat: freshwater.

albisuera, Sewellia Freyhof [J.] 2003:226, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 14 (no. 3); ref. 27390] River Thu Bon, about 16 kilometers west of Than My, 15°40.33'N, 107°48.45'E, Quang Nam, Dang Nang Province, Vietnam. Holotype: ZFMK 32913. Paratypes: AMNH 231609 (10), 231611 (3), 231616 (2), 231622 (1); ZFMK 32910-12 (3). Type catalog: Herder et al. 2010:114 [ref. 31087]. •Valid as Sewellia albisuera Freyhof 2003 -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:195 [ref. 32989], Endruweit & Nguyen 2016:301 [ref. 34912]). Current status: Valid as Sewellia albisuera Freyhof 2003. Gastromyzontidae. Distribution: Catchment of Thu Bon River, Quang Nam Da Nang Province, Vietnam. Habitat: freshwater.

analis, Sewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:587, Fig. 25 [Freshwater fishes of Vietnam v. 2; ref. 29730] Hông Vân, Tarinh, A Sap, A Luoi, Thua Thiên, Huê, Vietnam. Holotype: Univ. Su Pham, Ha Noi. Paratypes: (1). Spelled analus in caption to Fig. 25 and in text on p. 586; first reviser Kottelat (2012:70). •Valid as Sewellia analis Nguyen & Nguyen 2005 -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Valid as Sewellia analis Nguyen & Nguyen 2005. Gastromyzontidae. Distribution: Huê Province, Vietnam. Habitat: freshwater.

aphelocheilus, Protomyzon Inger [R. F.] & Chin [P. K.] 1962:110, Fig. 53 [Fieldiana Zoology v. 45; ref. 12303] Sungei Kaingeran, Tambunan District, northern Borneo. Holotype: FMNH 68166. Paratypes: CAS 56015 [ex FMNH 68167] (3), FMNH 68167 (orig. 13, now 9), N. Borneo coll. [ex FMNH 68167] (1). Type catalog: Ibarra & Stewart 1987:70 [ref. 12367] as FMNH 9 paratypes. •Valid as Protomyzon aphelocheilus Inger & Chin 1962 -- (Kottelat et al. 1993:56 [ref. 23448], Doi 1997:19 [ref. 22832], Martin-Smith & Tan 1998:587 [ref. 23647] as aphelochilus, Kottelat 2004:301 [ref. 27994], Kottelat 2012:68 [ref. 32367], Kottelat 2012:68 [ref. 32367], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Protomyzon aphelocheilus Inger & Chin 1962. Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

auronigrus, Gastromyzon Tan [H. H.] 2006:177, Pl. 17B; figs. 113-114 [The Borneo Suckers; ref. 28716] Kampong Loguhang, about 6 kilometers downstream of Serinsim Sta., 6°19.733'N, 116°44.403'E, Sungai Kinarom, Marak Parak, Kota Marudu, Sabah, Malaysia, elevation 120 meters. Holotype: ZRC 47121. •Valid as Gastromyzon auronigrus Tan 2006 -- (Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon auronigrus Tan 2006. Gastromyzontidae. Distribution: Sungai Kinarom draining into Marudu Bay, Sabah, Malaysia. Habitat: freshwater.

bamaensis, Paraprotomyzon Tang [W.-Q.] 1997:108 [English p. 110], Fig. 1 [Acta Zootaxonomica Sinica v. 22 (no. 1); ref. 23059] Hongshuihe River system, Bama County, Guangxi, China. Holotype: IHASW Guangxi 86VIII0001. Paratypes: IHASW Guangxi 86VIII0002-0016 (15). •Valid as Paraprotomyzon bamaensis Tang 1997 -- (Chen & Tang in Yue 2000:501 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Lu et al. 2005:203 [ref. 28156], Kottelat 2012:66 [ref. 32367], Zhang et al. 2016:160 [ref. 34477]). Current status: Valid as Paraprotomyzon bamaensis Tang 1997. Gastromyzontidae. Distribution: Nanpanjiang River of Zhujiang River, China. Habitat: freshwater.

baotingensis, Plesiomyzon Zheng [C.-Y.] & Chen [Y.-Y.] 1980:90 [99], Fig. 1 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] Boating Xian, Hainan Island, China. Syntypes: IHASW 76-VI-6077 (1), 76-VI-6079 (1); JNU 76-VI-6078 (1). English description on p. 99. •Valid as Plesiomyzon baotingensis Zheng & Chen 1980 -- (Zheng 1981:55 [ref. 22557], Chen in Kuang et al. 1986:156 [ref. 26639], Zheng in Pan et al. 1991:262 [ref. 23876], Zhu 1995:130 [ref. 25213], Yue & Chen 1998:205 [ref. 26415], Chen & Tang in Yue 2000:444 [ref. 25272], Tang & Chen 2000:4 [ref. 25445], Kottelat 2012:67 [ref. 32367], Kottelat 2013:195 [ref. 32989], Zhang et al. 2016:160 [ref. 34477]). Current status: Valid as Plesiomyzon baotingensis Zheng & Chen 1980. Gastromyzontidae. Distribution: Lingshuihe [Lingshui] River, Hainan Province, China. Habitat: freshwater.

bario, Gastromyzon Tan [H. H.] 2006:76, Pl. 11A; figs. 33-36 [The Borneo Suckers; ref. 28716] Headwaters of Sungai Padapur, near Bario (3500 ft), Arur Dalan, Baram River basin, Sarawak, Malaysia. Holotype: IRSNB 824 [ex 19.723]. Paratypes: CAS 53177 (27); IRSNB 825 [ex 19.723] (21), 826 [ex 19.724] (30); ZRC 47126 [ex IRSNB 825] (10). •Valid as Gastromyzon bario Tan 2006 -- (Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon bario Tan 2006. Gastromyzontidae. Distribution: Upper Trusan, Limbang and middle to upper Baram River basins, North Sarawak. Habitat: freshwater.

borneensis, Gastromyzon Günther [A.] 1874:454 [6] [Annals and Magazine of Natural History (Series 4) v. 14 (no. 84) (art. 55); ref. 5753] Mountain torrents of interior of Borneo (sources of Mingalong River), Sabah. Lectotype: BMNH 1874.11.24.1. Paralectotypes: BMNH 1874.11.24.2-4 and .5 (3, 1); MNHN 1994-0019 [ex BMNH] (1); NMW 46686 (2), 78062 (1). Type catalog: Bertin & Estève 1948:104 [ref. 19574]. Lectotype selected by Roberts 1982:502. •Valid as Gastromyzon borneensis Günther 1874 -- (Kottelat et al. 1993:51 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Tan & Sulaiman 2006:8 [ref. 28496], Tan 2006:55 [ref. 28716], Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon borneensis Günther 1874. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

borneensis, Protomyzon Hora [S. L.] & Jayaram [K. C.] 1952:193, Fig. 2 [Records of the Indian Museum (Calcutta) v. 49 (pt 2); ref. 2216] Kina Balu Moutain, Sabah, Borneo, Malaysia. Holotype: MCZ 37207 [not 34801]. See Das 2003:361 [ref. 27706]. •Valid as Protomyzon borneensis Hora & Jayaram 1952 -- (Kottelat et al. 1993:56 [ref. 23448], Doi 1997:19 [ref. 22832], Kottelat 2004:301 [ref. 27994], Kottelat 2012:68 [ref. 32367], Kottelat 2013:195 [ref. 32989], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Protomyzon borneensis Hora & Jayaram 1952. Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

brevis, Sewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:585, caption to fig. 24 [Freshwater fishes of Vietnam v. 2; ref. 29730] See Sewellia medius Nguyen & Nguyen 2005; first reviser Kottelat (2013:70). •Synonym of Sewellia medius Nguyen & Nguyen 2005 -- (Kottelat 2013:196 [ref. 32989]). Current status: Synonym of Sewellia medius Nguyen & Nguyen 2005. Gastromyzontidae.

breviventralis, Sewellia Freyhof [J.] & Serov [D. V.] 2000:231, Figs. 9-10 [Ichthyological Exploration of Freshwaters v. 11 (no. 3); ref. 25068] River Pako, about 50 kilometers north of Kontum, Kontum Province, Vietnam, 14°39'60"N, 107°46'98"E. Holotype: ZFMK 20955. Paratypes: ZFMK 20956-20961 (6) Type catalog: Herder et al. 2010:114 [ref. 31087]. •Valid as Sewellia breviventralis Freyhof & Serov 2000 -- (Freyhof 2003:225 [ref. 27390], Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:301 [ref. 34912]). Current status: Valid as Sewellia breviventralis Freyhof & Serov 2000. Gastromyzontidae. Distribution: Vietnam. Habitat: freshwater.

brunei, Neogastromyzon Tan [H. H.] 2006:194, Pl. 18C; figs. 126-127 [The Borneo Suckers; ref. 28716] Sungai Enkabang, about 15 min. upstream of Kuala Belalong Field Studies Centre, 4°32'13.5"N, 115°09'35.0"E, Belalong basin, Temburong District, Brunei Darussalam. Holotype: UBD uncat. Paratypes: UBD uncat. (9); ZRC 47400 (7). •Valid as Neogastromyzon brunei Tan 2006 -- (Kottelat 2012:65 [ref. 32367], Kottelat 2013:194 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Neogastromyzon brunei Tan 2006. Gastromyzontidae. Distribution: Temburong River basin, Brunei Darussalam, Borneo. Habitat: freshwater.

buas, Gastromyzon Mai [D. Y.] 1978:215, Fig. 99 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Buo River, northern Vietnam. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:47 [ref. 25482], Kottelat 2012:57 [ref. 32367]). •Status uncertain as Beaufortia buas (Mai 1978) -- (Kottelat 2013:191 [ref. 32989]). Current status: Uncertain as Beaufortia buas (Mai 1978). Gastromyzontidae. Habitat: freshwater.

caldwelli, Homaloptera Nichols [J. T.] 1925:1 [American Museum Novitates No. 172; ref. 15552] Near Nanping, Fukien Province, China. Holotype (unique): AMNH 8413. •Valid as Vanmanenia caldwelli (Nichols 1925) -- (Zhu 1995:131 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:454 [ref. 25272], Tang & Chen 2000:5 [ref. 25445] as oaldwelli, Kottelat 2012:71 [ref. 32367], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:162 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:142 [ref. 36698], Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:125 [ref. 37670]). Current status: Valid as Vanmanenia caldwelli (Nichols 1925). Gastromyzontidae. Distribution: East Asia: upper and middle reaches of Minijang River, Fujian Province (China). Habitat: freshwater.

caobangensis, Vanmanenia Nguyen [V. H.] 2005:571, Fig. 16 [Freshwater fishes of Vietnam v. 2; ref. 29730] Bang River, Cao Bang, Cao Bang Province, Vietnam. Holotype: NCNTTS I, Bac Ninh (lost). Paratypes: (4) lost. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Listed as Vanmanenia caobangensis Nguyen 2005 -- (Yi et al. 2014:95 [ref. 33322], Kottelat 2017:93 [ref. 35488]), Current status: Valid as Vanmanenia caobangensis Nguyen 2005. Gastromyzontidae. Distribution: Bang river system, Red River basin, Cao Bang Province, Vietnam. Habitat: freshwater.

changtingensis, Pseudogastromyzon fasciatus Liang [Y.-S.] 1942:1, fig. [Contributions from the Research Institute of Zoology and Botany, Fukien Provincial Academy No. 1; ref. 12959] Fukien [Fujian], Chang ting-hsian, China. Holotype: IZBPAF 9. Original not seen. •Valid as Pseudogastromyzon changtingensis Liang 1942, subspecies changtingensis Liang 1942 -- (Chen & Tang in Yue 2000:493 [ref. 25272], Zhang et al. 2016:161 [ref. 34477]). •Valid as Pseudogastromyzon changtingensis Liang 1942 -- (Zheng in Pan et al. 1991:276 [ref. 23876], Zhu 1995:133 [ref. 25213], Li 1998:262 [ref. 25773], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:68 [ref. 32367]). Current status: Valid as Pseudogastromyzon changtingensis Liang 1942. Gastromyzontidae. Distribution: Hanjiang River, China. Habitat: freshwater.

chekianensis, Homaloptera (Homalosoma) caldwelli Tchang [T.-L.] 1932:83, Fig. [Bulletin of the Fan Memorial Institute of Biology, Peiping (Zoological Series) v. 3 (no. 6); ref. 16400] Chekiang, China. Holotype (unique): ZMFMIB (now ASIZB) 7013. Appeared as chekinensis in main heading but as chekianensis on p. 84 and 95; the latter regarded as correct (named from Chekiang). •Synonym of Vanmanenia stenosoma (Boulenger 1901), but a valid subspecies as described -- (Zhu 1995:130 [ref. 25213]). •Synonym of Vanmanenia stenosoma (Boulenger 1901) -- (Chen & Tang in Yue 2000:452 [ref. 25272], Kottelat 2012:73 [ref. 32367]). •Synonym of Vanmanenia caldwelli (Nichols 1925) and Vanmanenia stenosoma (Boulenger 1901) -- (Zhang et al. 2016:162, 163 [ref. 34477]). Current status: Synonym of Vanmanenia stenosoma (Boulenger 1901). Gastromyzontidae. Habitat: freshwater.

cheni, Pseudogastromyzon Liang [Y.-S.] 1942:4, Fig. 2 [Contributions from the Research Institute of Zoology and Botany, Fukien Provincial Academy No. 1; ref. 12959] Changting, western Fukien [Fujiun]. Holotype: Instutute Zool. Botany, Prov. Acad. Sci. no. 6. Original not seen. A detailed description also appeared in Chen & Liang 1949:166 [ref. 13005]. •Valid as Pseudogastromyzon cheni Liang 1942 -- (Zhu 1995:133 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:488 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:68 [ref. 32367], Zhang et al. 2016:161 [ref. 34477]). Current status: Valid as Pseudogastromyzon cheni Liang 1942. Gastromyzontidae. Distribution: Hanjiang River, China. Habitat: freshwater.

chenyiyui, Crossostoma Zheng [C.-Y.] 1991:79 (English p. 81), Fig. 1 [Jinan-Daxue-xuebao = Journal of Jinan University. Ser.: Ziran kexue yu yi yixue ban = Natural science and medicine edition. v. 12 (no. 1); ref. 20105] Chang Xian, Fujian, China. Syntypes: IHASW 74VI 1260-65 (6). See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma chenyiyui Zheng 1991 -- (Zhu 1995:132 [ref. 25213], Chen & Tang in Yue 2000:472 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania chenyiyui (Zheng 1991) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:158 [ref. 34477]). Current status: Valid as Formosania chenyiyui (Zheng 1991). Gastromyzontidae. Distribution: Hanjiang River, China. Habitat: freshwater.

chini, Neogastromyzon Tan [H. H.] 2006:189, Pl. 18A; figs. 121-123 [The Borneo Suckers; ref. 28716] Tributary Baleh river, between Sungai Entunau and Sungai Putai, Third Division, Sarawak, Malaysia. Holotype: FMNH 97439. Paratypes: FMNH 68131 (126); ZRC 47401 (6), 47402 (2). •Valid as Neogastromyzon chini Tan 2006 -- (Kottelat 2012:66 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Neogastromyzon chini Tan 2006. Gastromyzontidae. Distribution: Hill streams in the Rejang, Lupar and Sadong river basins, Sarawak, Borneo, Malaysia. Habitat: freshwater.

compactus, Erromyzon Kottelat [M.] 2004:307, Figs. 8-9 [Ichthyological Exploration of Freshwaters v. 15 (no. 4); ref. 27994] 4 kilometers upriver of Ba Che city, 21°16'34"N, 107°14'54"E, Ba Che River, Quang Ninh Province, Vietnam. Holotype (unique): ZRC 49636. •Valid as Erromyzon compactus Kottelat 2004 -- (Neely et al. 2007:99 [ref. 29196], Yang et at. 2012:185 [ref. 32329], Kottelat 2012:60 [ref. 32367], Kottelat 2013:191 [ref. 32989], Xiu & Yang 2017:895 [ref. 35089]). Current status: Valid as Erromyzon compactus Kottelat 2004. Gastromyzontidae. Distribution: Northeastern Vietnam. Habitat: freshwater.

contractus, Gastromyzon Roberts [T. R.] 1982:504, Figs. 2, 6 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Tebelian, where it flows into Sungai Pinoh, 19 kilometers upstream from Nangapinoh, 0°30'S, 111°45'E, Kalimantan Barat, Borneo. Holotype: MZB 3447. Paratypes: BMNH 1982.3.29.111-112 (2); CAS 44186 (2), 49319-20 (1, 1); MNHN 1982-0690 (1); MZB 3448; RMNH 28863 (3); USNM 230247 (3). •Valid as Gastromyzon contractus Roberts 1982 -- (Roberts 1989:86 [ref. 6439], Kottelat et al. 1993:51 [ref. 23448], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Tan 2006:101 [ref. 28716], Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon contractus Roberts 1982. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

cornusaccus, Gastromyzon Tan [H. H.] 2006:68, Pl. 10B; figs. 25-26 [The Borneo Suckers; ref. 28716] Kota Marudu, Sungai Kinarom, Marudu Bay basin, Sabah, Malaysia. Holotype: UMSB 02233. Paratypes: IRSNB 828 (10); MUS 0364 (2), 0365 (1); UMSB [ex 02233] (18); ZRC 46997 (20). •Valid as Gastromyzon cornusaccus Tan 2006 -- (Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon cornusaccus Tan 2006. Gastromyzontidae. Distribution: Sungai Kinarom draining into the Marudu Bay, Malaysia. Habitat: freshwater.

cranbrooki, Gastromyzon Tan [H. H.] & Sulaiman [Z. H.] 2006:3, Figs. 1-2 [Zootaxa No. 1117; ref. 28496] Sungai Belalong, in front and near to Kuala Belalong Field Studies Centre, 4°32'50.4"N, 115°09'27.6"E, Temburong River basin, Temburong District, Brunei Darussalam, elevation 80 meters. Holotype: UBD uncat. Paratypes: CMK 11553 (2); UBD uncat. (26); ZRC 38757 (12), 47003 (26). Plus non-type material. Second author also seen as Zohrah. •Valid as Gastromyzon cranbrooki Tan & Sulaiman 2006 -- (Tan 2006:65 [ref. 28716], Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Gastromyzon cranbrooki Tan & Sulaiman 2006. Gastromyzontidae. Distribution: Temburong River basin, Brunei Darussalam, Borneo. Habitat: freshwater.

crassicauda, Vanmanenia Kottelat [M.] 2000:75, Fig. 66 [Journal of South Asian Natural History v. 5 (no. 1); ref. 25040] Houay Keap, waterfall adjacent to road on creek entering Nam Xam at kilometer 5 on road from Xam Tai to Ban Houatangoua, 20°01'00"N, 104°35'44"E, Houaphan Province, Laos. Holotype: ZRC 45390. Paratypes: CMK 15328 (8), LARRI uncat. (3), NRM 44903 (3), ZRC 45391 (3). •Valid as Homalosoma crassicauda (Kottelat 2000) -- (Kottelat 2001:45 [ref. 25482]). •Valid as Vanmanenia crassicauda Kottelat 2000 -- (Kottelat 2001:119 [ref. 25780], Kottelat 2012:71 [ref. 32367] Kottelat 2013:197 [ref. 32989], Li et al. 2019:128 [ref. 36698]). Current status: Valid as Vanmanenia crassicauda Kottelat 2000. Gastromyzontidae. Distribution: Laos. Habitat: freshwater.

crassiobex, Neogastromyzon Tan [H. H.] 2006:187, Pl. 17C; figs. 119-120 [The Borneo Suckers; ref. 28716] Unnamed hill stream, 5°00'20"N, 117°30'10"E, Kuamut basin, Lahad Datu, Sabah, Malaysia. Holotype: ZRC 47396. Paratypes: ZRC 47395 (3), 47397 (2). •Valid as Neogastromyzon crassiobex Tan 2006 -- (Kottelat 2012:66 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Valid as Neogastromyzon crassiobex Tan 2006. Gastromyzontidae. Distribution: Kuamut drainage of the Kinabatangan River basin, eastern Sabah, and the Sebuku River basin, northern Kalimantan Timur, Borneo, Malaysia. Habitat: freshwater.

crenastus, Gastromyzon Tan [H. H.] & Leh [C. U. M.] 2006:9, Figs. 3-4 [Zootaxa No. 1126; ref. 28497] Serian, Sungai Kuhas, 6.9 kilometers from Tebeu Tebakang turnoff, 5.8 kilometers inside right road, 1°09'10.0"N, 110°29"22.7"E, Sadong River basin, Sarawak, Borneo. Holotype: SM uncat. Paratypes: CMK 11958 (4); SM uncat. (9); ZRC 39416 (10), 39831 (7), 47075 (6), 47076 (24). Plus non-type material. •Valid as Gastromyzon crenastus Tan & Leh 2006 -- (Tan 2006:134 [ref. 28716], Kottelat 2012:61 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon crenastus Tan & Leh 2006. Gastromyzontidae. Distribution: Sadong River basin, Sarawak, Borneo. Habitat: freshwater.

ctenocephalus, Gastromyzon Roberts [T. R.] 1982:505, Fig. 7 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Senah, Sarawak state, Borneo, Malaysia. Holotype: BMNH 1893.3.6.269. Paratypes: BMNH 1893.3.6.261-268 (8). •Valid as Gastromyzon ctenocephalus Roberts 1982 -- (Kottelat et al. 1993:51 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Tan & Ng 2004:271 [ref. 28058], Tan & Leh 2006:3 [ref. 28497], Tan 2006:111 [ref. 28716], Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon ctenocephalus Roberts 1982. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

cyclica, Beaufortia Chen [Y.-Y.] 1980:115 (English p. 120), Fig. 6 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] West River, Longzhow Xian, Guangxi Province, China. Holotype (unique): IHASW 75-IV-1417. •Valid as Beaufortia cyclica Chen 1980 -- (Zheng et al. 1989:263 [ref. 21202], Zhu 1995:136 [ref. 25213], Chen & Tang in Yue 2000:516 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Du et al. 2008:70 [ref. 29644], Kottelat 2012:57 [ref. 32367], Zhang et al. 2016:157 [ref. 34477]). Current status: Valid as Beaufortia cyclica Chen 1980. Gastromyzontidae. Distribution: China. Habitat: freshwater.

damingshanensis, Erromyzon Xiu [L.-H.] & Yang [J.] 2017:893, Figs. 1-3 [Environmental Biology of Fishes v. 100 (no. 8); ref. 35089] Tributary of Qingshuihe river in Naxue village, Dafeng Town, Shanglin County, Guangxi, China, 23°28′19′′N, 108°34′13′′E, elevation 119 meters. Holotype: KIZ 2014091301. Paratypes: KIZ. •Valid as Erromyzon damingshanensis Xiu & Yang 2017. Current status: Valid as Erromyzon damingshanensis Xiu & Yang 2017. Gastromyzontidae. Distribution: Hongshuihe River, Pearl River drainage, Guangxi, China. Habitat: freshwater.

danumensis, Gastromyzon Chin [P. K.] & Inger [R. F.] 1989:54, Fig. 1 [[The] Malayan Nature Journal v. 43 (no. 1); ref. 17653] Sungei Palum Tambun, tributary of Segama River, Danum Valley Conservation Area, Lahad Datu District, Sabah, Malaysia. Holotype: FMNH 98126 [not 98125]. Paratypes: FRCL(T) 0001-4 (?); FMNH 98127-29 (22, 6, 10); UKMS/OS 2121-2134 (14), UKMS/OS 2099-2120 (?). •Valid as Gastromyzon danumensis Chin & Inger 1989 -- (Kottelat et al. 1993:51 [ref. 23448], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Martin-Smith & Tan 1998:585 [ref. 23647], Rachmatika 1998:656 [ref. 23901], Tan 2006:144 [ref. 28716], Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon danumensis Chin & Inger 1989. Gastromyzontidae. Distribution: Segma River basin, eastern Sabah, Malaysia. Habitat: freshwater.

daon, Gastromyzon Mai [D. Y.] 1978:216, Fig. 100 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Phong-Thô and Nâm-Na creeks, Lai-Châu, northern Vietnam. Syntypes: DVZUT. •Valid as Pseudogastromyzon daon (Mai 1978) -- (Kottelat 2001:47 [ref. 25482], Kottelat 2001:101 [ref. 25780] as cf. daon, Kottelat 2012:57 [ref. 32367], Zhang et al. 2016:161 [ref. 34477]). •Valid as Beaufortia daon (Mai 197) -- (Kottelat 2013:191 [ref. 32989]). Current status: Valid as Pseudogastromyzon daon (Mai 1978). Gastromyzontidae. Distribution: Vietnam. Habitat: freshwater.

davidi, Crossostoma Sauvage [H.-E.] 1878:89 [4] [Bulletin de la Société philomathique de Paris (7th Série) v. 2; ref. 3878] Tokien occidental, elevation 1200 meters [? 3000 meters]. Syntypes: BMNH 1908.4.9.1 [ex MNHN] (1) China; MNHN A-3449 (11), 9817 (4). Type catalog: Bertin & Estève 1948:102 [ref. 19574]. On p. 4 of separate. See account of Formosania; the genus Crossostoma is preoccupied. See Kottelat 2012:60 [ref. 32367] for remarks on locality. •Valid as Crossostoma davidi Sauvage 1878 -- (Zhu 1995:132 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:475 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania davidi (Sauvage 1878) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:158 [ref. 34477]). Current status: Valid as Formosania davidi (Sauvage 1878). Gastromyzontidae. Distribution: Minjiang River drainage, China. Habitat: freshwater.

denudata, Glaniopsis Roberts [T. R.] 1982:517, Fig. 17 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Sungai Kidikarok, northern Borneo, elevation 4500 feet. Holotype: BMNH 1957.2.27.1. Paratypes: BMNH 1957.2.27.2-15 (14), IRSNB 618 (1). Type catalog: Walschaerts 1987:14 [ref. 20755]. •Valid as Glaniopsis denudata Roberts 1982 -- (Kottelat et al. 1993:52 [ref. 23448], Doi 1997:19 [ref. 22832], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Glaniopsis denudata Roberts 1982. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

diardi, Sewellia Roberts [T. R.] 1998:281, Fig. 6 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23902] Lower Xe Nam Noi, 1.5 kilometers downstream from bridge on route 232 to Attapeu, 26 kilometers by road from Ban Nam Tang, Laos, elevation 270 meters. Holotype: ZRC 40364. Paratypes: CAS 91778 (5), MNHN 1997-0001 (5), USNM 344488 (5), ZRC 40365-66 (21, 12). •Valid as Sewellia diardi Roberts 1998 -- (Freyhof & Serov 2000:229 [ref. 25068], Kottelat 2001:119 [ref. 25780], Freyhof 2003:225 [ref. 27390], Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:300 [ref. 34912]). Current status: Valid as Sewellia diardi Roberts 1998. Gastromyzontidae. Distribution: Laos. Habitat: freshwater.

disparis, Parhomaloptera Lin [S.-Y.] 1934:225, Figs. 1-4 [Lingnan Science Journal, Canton v. 13 (no. 2); ref. 12420] Loh-Fau Shan, Kwangtung, China. Holotype: FESC (now at PRFRI) H15. Paratypes: CAS-SU 30981 (3), ZSI F11873/1 (1). Type catalog: Böhlke 1953:40 [ref. 12291], Menon & Yazdani 1968:119 [ref. 20743]. •Valid as Homaloptera disparis (Lin 1934) -- (Mai 1978:202 [ref. 13511]). •Valid as Liniparhomaloptera disparis (Lin 1934) -- (Zheng 1981:55 [ref. 22557], Zheng in Pan et al. 1991:263 [ref. 23876], Zhu 1995:130 [ref. 25213], Chen & Tang in Yue 2000:446 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2001:46 [ref. 25482], Kottelat 2012:65 [ref. 32367], Zhang et al. 2016:159 [ref. 34477], Wu et al. 2016:280 [ref. 34909]). Current status: Valid as Liniparhomaloptera disparis (Lin 1934). Gastromyzontidae. Distribution: Zhujiang River, China. Habitat: freshwater.

elongata, Sewellia Roberts [T. R.] 1998:283, Fig. 7 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23902] Bolovens Plateau, Xe Nam Noi at proposed dam site for Xe Nam Noi-Xe Pian dam, 16 kilometers southeast of Ban Nam Tang, Laos, elevation 730 meters. Holotype: ZRC 40361. Paratypes: CAS 91777 (160), MNHN 1997-0002 (159), USNM 344489 (162), ZRC 40362-63 (158, 1). •Valid as Sewellia elongata Roberts 1998 -- (Freyhof & Serov 2000:230 [ref. 25068], Kottelat 2001:119 [ref. 25780], Freyhof 2003:225 [ref. 27390], Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:300 [ref. 34912]). Current status: Valid as Sewellia elongata Roberts 1998. Gastromyzontidae. Distribution: Laos. Habitat: freshwater.

elongatus, Gastromyzon Mai [D. Y.] 1978:213, Fig. 98 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Northern Vietnam. Holotype (unique): DVZUT. •Status uncertain -- (Kottelat 2001:47 [ref. 25482], Kottelat 2012:57 [ref. 32367]). Current status: Uncertain as Pseudogastromyzon elongatus (Mai 1978). Gastromyzontidae. Habitat: freshwater.

embalohensis, Gastromyzon Rachmatika [I.] 1998:652, Figs. 1-2 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23901] High gradient stream near confluence with Sungai Tekelan, tributary of Embaloh River (1°26'6.46"N, 112°28'1,96"E), Indonesia, elevation 130 meters. Holotype: MZB 9205. Paratypes: BMNH 1997.9.16.1 (1), USNM 363662 (1), MZB 9206-10 (7, 2, 1, 3, 1), ZRC 42981 (1); plus non-type material. •Valid as Gastromyzon embalohensis Rachmatika 1998 -- (Kottelat & Widjanarti 2005:156 [ref. 28284], Parenti & Lim 2005:187 [ref. 28285], Tan & Sulaiman 2006:8 [ref. 28496], Tan 2006:157 [ref. 28716], Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon embalohensis Rachmatika 1998. Gastromyzontidae. Distribution: West Kalimantan, Borneo, Indonesia. Habitat: freshwater.

eubranchus, Hypergastromyzon Roberts [T. R.] 1991:334, Fig. 1 [Japanese Journal of Ichthyology v. 37 (no. 4).; ref. 20081] Batang Ai near Wong Mepal, Sarawak state, Borneo, East Malaysia. Holotype: BMNH 1984.1.15.1. Paratypes: BMNH 1984.11.15.2 (1), 1984.11.15.3 (1); CAS 55889 (1). •Valid as Hypergastromyzon eubranchus Roberts 1991 -- (Kottelat et al. 1993:54 [ref. 23448], Kottelat & Lim 1995:236 [ref. 23210], Doi 1997:19 [ref. 22832], Tan 2006:203 [ref. 28716], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Hypergastromyzon eubranchus Roberts 1991. Gastromyzontidae. Distribution: Lupar River basin, southern Sarawak, Malaysia. Habitat: freshwater.

extrorsus, Gastromyzon Tan [H. H.] 2006:70, Pl. 10C; figs. 27-29 [The Borneo Suckers; ref. 28716] Kampong Kibunut, 5°53.301'N, 116°14.102'E, Sungai Moyog, Penampang River, Petagas basin, Penampang, Sabah, East Malaysia, elevation 225 meters. Holotype: MUS uncat. Paratypes: MUS uncat. (13); ZRC 46999 (14). •Valid as Gastromyzon extrorsus Tan 2006 -- (Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon extrorsus Tan 2006. Gastromyzontidae. Distribution: Kimanis and Petagas river basins, West Sabah, East Malaysia. Habitat: freshwater.

fangi, Crossostoma Nichols [J. T.] 1931:263, Fig. [Lingnan Science Journal, Canton v. 10 (nos 2/3); ref. 12419] Near Canton [Guangzhou], Kwangtung [Guangdong] Province, China. Holotype: AMNH 10111 [ex Lingnan Univ. P-81]. Paratypes: AMNH 9687 (1). Additional material: CAS-SU 29085 (1). Type catalog: Böhlke 1953:40 [ref. 12291]. See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Pseudogastromyzon fangi (Nichols 1931) -- (Zheng 1981:56 [ref. 22557], Zheng et al. 1989:253 [ref. 21202], Zheng in Pan et al. 1991:278 [ref. 23876], Zhu 1995:133 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:496 [ref. 25272], Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:161 [ref. 34477]). Current status: Valid as Pseudogastromyzon fangi (Nichols 1931). Gastromyzontidae. Distribution: Beijiang, Xijiang, and Xiangjiang rivers, China. Habitat: freshwater.

farragus, Gastromyzon Tan [H. H.] & Leh [C. U. M.] 2006:15, Figs. 5-6 [Zootaxa No. 1126; ref. 28497] Serian, Sungai Kuhas, 6.9 kilometers from Tebeu Tebakang turnoff, 5.8 kilometers inside right road, 1°09'10.0"N, 110°29"22.7"E, Sadong River basin, Sarawak, Borneo. Holotype: SM uncat. Paratypes: SM uncat. (6); ZRC 47108 (7), 47109 (6), 47110 (6), 47111 (36). •Valid as Gastromyzon farragus Tan & Leh 2006 -- (Tan 2006:173 [ref. 28716], Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon farragus Tan & Leh 2006. Gastromyzontidae. Distribution: Sadong River basin, Sarawak, Borneo. Habitat: freshwater.

fasciatus, Gastromyzon Inger [R. F.] & Chin [P. K.] 1961:173 [Copeia 1961 (no. 2); ref. 9356] Sungei Dapu River near mouth of Sungei Putai, 1°48'N, 113°45'E, Sarawak state, Borneo, East Malaysia. Holotype: FMNH 68119. Paratypes: BMNH 1960.12.30.1 [ex FMNH 68115] (1); FMNH 68115 (28, now 22), 68120 (4), 68125 (1); Poll coll. [ex FMNH 68115] (2); RMNH 23743 (1); Sarawak Mus. [ex FMNH 68115] (1). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367]. •Valid as Gastromyzon fasciatus Inger & Chin 1961 -- (Roberts 1989:86 [ref. 6439], Kottelat et al. 1993:51 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Parenti & Lim 2005:187 [ref. 28285], Tan 2006:93 [ref. 28716], Kottelat 2012:62 [ref. 32367], Kottelat 2013:192 [ref. 32989]). Current status: Valid as Gastromyzon fasciatus Inger & Chin 1961. Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

fasciatus, Psilorhynchus Sauvage [H.-E.] 1878:88 [3] [Bulletin de la Société philomathique de Paris (7th Série) v. 2; ref. 3878] Tonkin, Vietnam, [Fukien [Fujian], Kuatun, 27°51'N, 117°48'E], elevation 1200 meters. Syntypes: MNHN 0000-9821 (3), A-3449 (11). Type catalog: Bertin & Estève 1948:103 [ref. 19574]. On p. 3 of separate. •Valid as Pseudogastromyzon fasciatus (Sauvage 1878), subspecies fasciatus (Sauvage 1878) -- (Chen & Tang in Yue 2000:482 [ref. 25272], Zhang et al. 2016:161 [ref. 34477]). •Valid as Pseudogastromyzon fasciatus (Sauvage 1878) -- (Zhu 1995:134 [ref. 25213], Li 1998:263 [ref. 25773], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:69 [ref. 32367]). Current status: Valid as Pseudogastromyzon fasciatus (Sauvage 1878). Gastromyzontidae. Distribution: Fujian [Fujian], China. Habitat: freshwater.

fascicauda, Crossostoma Nichols [J. T.] 1926:2, Fig. 2 [American Museum Novitates No. 224; ref. 15601] Fuching Hsien, Fukien [Fujian] Province, China. Holotype: AMNH 8475. Paratypes: (several) AMNH 10283 (1), FMNH 14814 (1). Type catalog: Ibarra & Stewart 1987:29 [ref. 12367]. See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma fascicauda Nichols 1926 -- (Zhu 1995:132 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:471 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania fascicauda (Nichols 1926) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania fascicauda (Nichols 1926). Gastromyzontidae. Distribution: Fujian Province, China. Habitat: freshwater.

fasciolata, Beaufortia Nguyen [V. H.] 2005:588, Fig. 26 [Freshwater fishes of Vietnam v. 2; ref. 29730] Bang Giant River, at Cao Bang, Vietnam. Holotype: NCNTTS I (lost). Paratypes: (1) lost. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Questionably a synonym of Beaufortia zebroida (Fang 1930) -- (Kottelat 2012:59 [ref. 32367]). Current status: Synonym of Beaufortia zebroida (Fang 1930). Gastromyzontidae. Distribution: Bang Giang River, Cao Bang, Vietnam [if valid]. Habitat: freshwater.

fasciolatus, Crossostoma Wang [H.-G.], Fan [Z.-Y.] & Chen [Y.] 2006:902, Figs. 1-2 [Acta Zootaxonomica Sinica v. 31 (no. 4); ref. 28974] Rivulet in Wuyanling Natural Resources, Feiyun River system, Taishun County, Zhejiang, China. Holotype: ZMNH 8380338. Paratypes: ZMNH 8380325 (1), 8380327 (1), 8389339 (1). See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma fasciolatus Wang, Fam & Chen 2006 -- (Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania fasciolata (Wang, Fan & Chen 2006) -- (Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania fasciolata (Wang, Fan & Chen 2006). Gastromyzontidae. Distribution: Feiyun River system, China. Habitat: freshwater.

foochowensis, Crossostoma fascicauda Tchang [T.-L.] 1932:123, Figs. 3-4 [Bulletin of the Fan Memorial Institute of Biology, Peiping (Zoological Series) v. 3 (no. 9); ref. 16402] Foochow, Fukien, China. Holotype: ZMFMIB (now ASIZB) 6480. See account of Formosania; the genus Crossostoma is preoccupied. •Synonym of Formosania fascicauda (Nichols 1926) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Synonym of Formosania fascicauda (Nichols 1926). Gastromyzontidae. Habitat: freshwater.

formosanum, Homaloptera Steindachner [F.] 1908:86 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 45 (no. 7) (for 20 Feb. 1908); ref. 18801] Lake Candidius, Taiwan. Syntypes: (16) NMW 47138 (3), 48680 (3), 48682-83 (3, 3), 48690 (4). Type catalog: Ho & Shao 2011:32 [ref. 31432]. Objectively invalid; preoccupied by Homaloptera formosana Boulenger 1894 (also from Taiwan); replaced by Crossostoma lacustre Steindachner 1908. The genus is feminine, therefore mandatory correction to lacustris. •Synonym of Crossostoma lacustre Steindachner 1908 -- (Chen & Tang in Yue 2000:466 [ref. 25272]). •Synonym of Formosania lacustre (Steindachner 1908) -- (Novák et al. 2006:92 [ref. 28661], Ho & Shao 2011:32 [ref. 31432]). •Synonym of Formosania lacustris (Steindachner 1908) -- (Kottelat 2012:61 [ref. 32367]). Current status: Synonym of Formosania lacustris (Steindachner 1908). Gastromyzontidae. Habitat: freshwater.

galericula, Crossostoma Zhang [X.-F.] in Zhang & Wang 2011:85, Fig. 1 [Journal of the Shanghai Ocean University v. 20 (no 1); ref. 31283] Rivulet in Hehu Town, Qingyuan County, Zhejiang Province, China. Holotype: ZH [= ZMNH] 070616. Paratypes: ZH [= ZMNH] 070618 (1), 070621 (1), 070622 (1). See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Formosania galericula (Zhang 2011) in Homalopteridae -- (Kottelat 2012:60 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania galericula (Zhang 2011). Gastromyzontidae. Distribution: Zhejiang Province, China. Habitat: freshwater.

gilberti, Formosania Oshima [M.] 1919:194, Pl. 49 (figs. 1-2) [Annals of the Carnegie Museum v. 12 (nos 2-4); ref. 3312] Tamusui River near Shinten, Taiwan. Lectotype: FMNH 59085 [ex CM 8222]. Paralectotypes: (3) CAS-SU 23120 (1). Type catalog: Henn 1928:71 [ref. 12305], Böhlke 1953:40 [ref. 12291], Ibarra & Stewart 1987:36 [ref. 12367], Ho & Shao 2011:32 [ref. 31432]. Lectotype selected by Eschmeyer 1998:647 [ref. 23416]. See account of Formosania; the genus Crossostoma is preoccupied. The genus is feminine, therefore mandatory correction to lacustris. •Synonym of Crossostoma lacustre Steindachner 1908 -- (Tzeng & Shen 1982:164 [ref. 8410], Watanabe 1983:106 [ref. 8266], Chen & Tang in Yue 2000:466 [ref. 25272]). •Synonym of Formosania lacustre (Steindachner 1908) -- (Novák et al. 2006:92 [ref. 28661], Ho & Shao 2011:32 [ref. 31432], Kottelat 2012:61 [ref. 32367]). Current status: Synonym of Formosania lacustris (Steindachner 1908). Gastromyzontidae. Habitat: freshwater.

gossei, Glaniopsis Roberts [T. R.] 1982:518, Fig. 18 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Arur Dalan, headwater of Sungai Padapur, Baram basin, near Bario, Sarawak state, Borneo, East Malaysia, elevation 3500 feet. Holotype: IRSNB 621. Paratypes: CAS 53176 (10), 53179 (15); IRSNB 622 (9). Type catalog: Walschaerts 1987:14 [ref. 20755]. •Valid as Glaniopsis gossei Roberts 1982 -- (Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Kottelat 2012:64 [ref. 32367], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Glaniopsis gossei Roberts 1982. Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

gracilicauda, Beaufortia kweichowensis Chen [Y.-Y.] & Zheng [C.-Y.] in Zheng & Chen 1980:97 [101], Fig. 8 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] East River, Xinfeng Xian, and North River, Shaoguan Shi, Guangdong, China. Syntypes: IHASW 76-IV-5880 to 81 (2), 76-IV-6986 to 87 (2), 76-IV-7736 (1); JNU 76-IV-7742 to 47 (6). English description on p. 101. •Synonym of Beaufortia kweichowensis (Fang 1931), but a valid subspecies as described -- (Zheng 1981:57 [ref. 22557], Zheng et al. 1989:262 [ref. 21202], Zheng in Pan et al. 1991:285 [ref. 23876], Zhu 1995:135 [ref. 25213], Chen & Tang in Yue 2000:509 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2012:58 [ref. 32367], Kottelat 2013:191 [ref. 32989], Zhang et al. 2016:157 [ref. 34477]). Current status: Synonym of Beaufortia kweichowensis (Fang 1931). Gastromyzontidae. Distribution: Dongjiang and Beijiang rivers, Guangdong Province, China. Habitat: freshwater.

griswoldi, Progastromyzon Hora [S. L.] & Jayaram [K. C.] 1952:192, Fig. 1 [Records of the Indian Museum (Calcutta) v. 49 (pt 2); ref. 2216] Kina Balu Mountain, Kaddamayaa River at Kiau, Sabah, Borneo. Holotype (unique): MCZ 37206 [not 34806]. See Das 2003:361 [ref. 27706]. •Valid as Protomyzon griswoldi (Hora & Jayaram 1952) -- (Kottelat et al. 1993:56 [ref. 23448], Kottelat & Lim 1995:237 [ref. 23210], Doi 1997:19 [ref. 22832], Martin-Smith & Tan 1998:588 [ref. 23647], Kottelat 2004:301 [ref. 27994], Parenti & Lim 2005:189 [ref. 28285], Kottelat 2012:68 [ref. 32367], Kottelat 2013:195 [ref. 32989], Sulaiman et al. 2018:32 [ref. 35802], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Protomyzon griswoldi (Hora & Jayaram 1952). Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

gymnetrus, Vanmanenia Chen [Y.-Y.] 1980:100 (English p. 118), Fig. 1 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] Jiulong River, Longyan Xian, Fujian Province, China. Holotype (?): IHB 74VI0786. Syntypes (?): IHASW 74-VI-0786-0791 (5). •Valid as Vanmanenia gymnetrus Chen 1980 -- (Zheng in Pan et al. 1991:267 [ref. 23876], Zhu 1995:131 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:460 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2012:72 [ref. 32367], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:162 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698] as gynmetrus, Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:122 [ref. 37670] as gymntrus). Current status: Valid as Vanmanenia gymnetrus Chen 1980. Gastromyzontidae. Distribution: East Asia: Dongjiang, Hanjiang, and Jiulongjiang rivers, Fujian Province (China). Habitat: freshwater.

hainanensis, Vanmanenia Chen [Y.-Y.] & Zheng [C.-Y.] in Zheng & Chen 1980:93 [100], Fig. 4 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] A mountain stream of Chang Jiang, Qiongzhou Xian, Hainan Island, China. Syntypes: IHASW 76-V-9142 (1), 76-V-9168 (1), 76-V-9173 to 79 (7). JNU 76-V-9181 (1), 76-V-9183 (1), 76-V-9185 (1), 76-V-9188 (1), 76-V-9190 to 91 (2). English description on p. 100. •Valid as Vanmanenia hainanensis Chen & Zheng 1980 -- (Zheng 1981:56 [ref. 22557], Chen in Kuang et al. 1986:158 [ref. 26639], Zheng in Pan et al. 1991:269 [ref. 23876], Zhu 1995:131 [ref. 25213], Chen & Tang in Yue 2000:457 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2012:72 [ref. 32367], Kottelat 2013:197 [ref. 32989], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:128 [ref. 36698], Zhang et al. 2019:424 [ref. 36699]). Current status: Valid as Vanmanenia hainanensis Chen & Zheng 1980. Gastromyzontidae. Distribution: Chaghua River drainage, Hainan Island, China and possibly Vietnam. Habitat: freshwater.

hanitschi, Glaniopsis Boulenger [G. A.] 1899:228 [Annals and Magazine of Natural History (Series 7) v. 4 (no. 21) (art. 21); ref. 553] Mt. Kinabalu, Kadamaian River, Borneo, Malaysia, elevation 2100 feet. Syntypes: BMNH 1899.8.19.17-18 (2), ZRC 1497 (7). •Valid as Glaniopsis hanitschi Boulenger 1899 -- (Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:236 [ref. 23210], Doi 1997:19 [ref. 22832], Parenti & Lim 2005:187 [ref. 28285] as cf. hanitschi, Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Glaniopsis hanitschi Boulenger 1899. Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

homalocephala, Vanmanenia Zhang [C.-G.] & Zhao [Y.-H.] 2000:460, Figs. 1-2 [Acta Zootaxonomica Sinica v. 25 (no. 4); ref. 25108] Rivulet of Luopqing Jiang basin, a tributary of Liu Jiang basin, Pearl River system, Baishou, Yongfu County, Guangxi, China, 26°35'N, 118°15'E. Holotype: ASIZB [now NZMC] 70180. Paratype:ASIZB [now NZMC] 70181 (1). Type catalog: Ye et al. 2015:57 [ref. 33808]. •Valid as Vanmanenia homalocephala Zhang & Zhao 2000 -- (Kottelat 2012:72 [ref. 32367], Yi et al. 2014:96 [ref. 33322], Ye et al. 2015:57 [ref. 33808], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698], Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:122 [ref. 37670]). Current status: Valid as Vanmanenia homalocephala Zhang & Zhao 2000. Gastromyzontidae. Distribution: East Asia: Pearl River basin, Guangxi Province (southern China). Habitat: freshwater.

huangguoshuensis, Beaufortia Zheng [C.-Y.] & Zhang [W.] 1987:80 [English p. 85] [Journal of Science and Medicine of Jinan University 1987 (no. 3); ref. 17741] Dabang River, Zhujiang River system, upstream of Huangguoshu Falls, Zhenning County, Guizhou Province, China. Syntypes: IHASW 83-IV-0049 (1), Ji-Nan Univ. Dept. Biol. 83-VI-0053 (1). Appeared as above (first) with a footnote that the species would appear in ""The Fishes of Pearl River", in press", which is ref. 21202, p. 258, Fig. 198; we date to 1987 as above. •Valid as Beaufortia huangguoshuensis Zheng & Zhang 1987 -- (Zhu 1995:135 [ref. 25213], Chen & Tang in Yue 2000:510 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Zhang et al. 2016:157 [ref. 34477]). Current status: Valid as Beaufortia huangguoshuensis Zheng & Zhang 1987. Gastromyzontidae. Distribution: Nanpanjiang, branch of Zhujiang River, China. Habitat: freshwater.

humilis, Hypergastromyzon Roberts [T. R.] 1989:92, Fig. 72 [Memoirs of the California Academy of Sciences No. 14; ref. 6439] Sungei Tamang, small forest stream flowing into Sungai Pinoh opposite mouth of Sungei Kelawai, Kalimantan Barat, Borneo. Holotype: MZB 3480. Paratypes: CAS 49333 (1). •Valid as Hypergastromyzon humilis Roberts 1989 -- (Roberts 1991:334 [ref. 20081], Kottelat et al. 1993:54 [ref. 23448], Doi 1997:19 [ref. 22832], Tan 2006:201 [ref. 28716], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Hypergastromyzon humilis Roberts 1989. Gastromyzontidae. Distribution: Kapuas River basin, Kalimantan Barat, Borneo. Habitat: freshwater.

hypsicrateae, Sewellia Endruweit [M.] & Nguyen [T. D. P.] 2016:299, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 27 (no. 4) for Dec.; ref. 34912] Quang Tri Province, Dakrong River basin, market of Krong Klang (Dakrong) town, Vietnam, about 16°42'N, 106°53'E. Holotype: RIA1 001090. Paratypes: RIA1. •Valid as Sewellia hypsicrateae Endruweit & Nguyen 2016. Current status: Valid as Sewellia hypsicrateae Endruweit & Nguyen 2016. Gastromyzontidae. Distribution: Dakrong River basin, Quang Tri Province, Vietnam. Habitat: freshwater.

ingeri, Gastromyzon Tan [H. H.] 2006:149, Figs. 92-94 [The Borneo Suckers; ref. 28716] Tawau River, Tawau Hills Parl, Tawau, Sabah, Malaysia, elevation 270 meters. Holotype: FMNH [ex 108270]. Paratypes: FMNH 108267 (1), 108268 (2), 108269 (4), 108270 (4), 108271 (3); ZRC 47124 [ex FMNH 108269] (3). •Valid as Gastromyzon ingeri Tan 2006 -- (Kottelat 2012:62 [ref. 32367], Kottelat 2013:193 [ref. 32989], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Gastromyzon ingeri Tan 2006. Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

insidiosa, Katibasia Kottelat [M.] 2004:303, Figs. 2-3 [Ichthyological Exploration of Freshwaters v. 15 (no. 4); ref. 27994] Rajang drainage, Ulu Katibas, Sungai Melinau, Song District, Sarawak. Holotype: ZRC 49631. Paratypes: CMK 10856 (3); ZRC 49287 (4), 49362 (1) •Valid as Katibasia insidiosa Kottelat 2004 -- (Parenti & Lim 2005:188 [ref. 28285], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Katibasia insidiosa Kottelat 2004. Gastromyzontidae. Distribution: Headwaters of Rajang River, Sarawak, Borneo, Malaysia. Habitat: freshwater.

intermedia, Beaufortia Tang [W.-Q.] & Wang [D.-Z.] in Tang, Wang & Yu 1997:19 [English p. 22], Fig. 1 [Zoological Research v. 18 (no. 1); ref. 23718] 107°74'N [sic], 25°58'E, Sandu County, Guizhou, China. Holotype: Inst. Hydrobiol. Wuhan 87IV512. Paratypes: IHW 87IV511 (1), 87IV513-516 and 519 (5); ZMC 87IV517-18 (2). •Valid as Beaufortia intermedia Tang & Wang 1997 -- (Chen et al. 2009:641 [ref. 30359], Kottelat 2012:58 [ref. 32367], Zhang et al. 2016:157 [ref. 34477]). Current status: Valid as Beaufortia intermedia Tang & Wang 1997. Gastromyzontidae. Distribution: China. Habitat: freshwater.

intermedia, Praeformosania Fang [P.-W.] 1935:75, Fig. 10 [Sinensia v. 6 (no. 1); ref. 1300] Mountain streams running into Tung-ting Lake, Tu-Yuen-Hsien, southern Kweichow, Guizhou Province, China. Holotype: NRIBAS M.2709. Paratypes: MNHN 1940-0143 (1), NRIBAS M.2691-92 (2), 2770-74 (5). Type catalog: Bertin & Estève 1948:103 [ref. 19574]. Chen 1980:99 [ref. 23210] acted as first revisor and selected pingchowensis over intermedia if the species are treated as synonyms. •Synonym of Vanmanenia pingchowensis (Fang 1935) -- (Zheng et al. 1989:246 [ref. 21202], Kottelat 2012:72 [ref. 32367], Yi et al. 2014:92 [ref. 33322]). •Not treated in Zhang et al. 2016:163 [ref. 34477]. •Valid as Vanmanenia intermedia (Fang 1935) -- (Deng & Zhang 2020:117 [ref. 37670]). Current status: Valid as Vanmanenia intermedia (Fang 1935). Gastromyzontidae. Distribution: East Asia: Guizhou Province (southern China). Habitat: freshwater.

introrsus, Gastromyzon Tan [H. H.] 2006:72, Pl. 10D; figs. 30-32 [The Borneo Suckers; ref. 28716] Mile 1 from Keningau to Crocker Range National Park HQ, Padas basin, 5°21.206'N, 116°07.532'E, Sungai Agudon, Keningau, Sabah, East Malaysia, elevation 395 meters. Holotype: MUS uncat. Paratypes: FMNH 99345 (6), 99354 (3); MUS (12); USNM 361818 (1), 361922 (1); ZRC 47001 (12). •Valid as Gastromyzon introrsus Tan 2006 -- (Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon introrsus Tan 2006. Gastromyzontidae. Distribution: Padas and Labuk River basins, Malaysia. Habitat: freshwater.

jiulongjiangensis, Pseudogastromyzon fasciatus Chen [Y.-Y.] 1980:110 (English p. 119), Fig. 5 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] Jiulong River, Longyan Xian and Nanjing Xian, Fujian Province, China. Syntypes: IHASW 74-V-445 (1), 447-448 (2), 761 (1), 763 (1), 765-766 (2), 768-770 (3), 776 (1), 779 (1), 782-784 (3). •Valid as Pseudogastromyzon jiulongjiangensis Chen 1980 -- (Li 1998:263 [ref. 25773]). •Synonym of Pseudogastromyzon fasciatus (Sauvage 1878), but a valid subspecies as described -- (Zhu 1995:134 [ref. 25213], Chen & Tang in Yue 2000:483 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Zhang et al. 2016:162 [ref. 34477]). Current status: Synonym of Pseudogastromyzon fasciatus (Sauvage 1878). Gastromyzontidae. Distribution: Fujian Province, China [if valid]. Habitat: freshwater.

kalotaenia, Erromyzon Yang [J.], Kottelat [M.], Yang [J.-X.] & Chen [X.-Y.] 2012:180, Fig. 6 [Zootaxa No. 3586; ref. 32329] Changle village (Liuding river), Jinxiu County, Guangxi, China; 24°22′54.3″N, 110°06′38.7″E, altitude 256 meters. Holotype: KIZ 200304310. Paratype: KIZ 200304313 (1), -314 (1), -317 (1), 200304049-52 and 200304071 (5). Plus non-type specimens. Type catalog: Du et al. 2013:354 [ref. 32939]. •Valid as Erromyzon kalotaenia Yang, Kottelat, Yang & Chen 2012 -- (Xiu & Yang 2017:895 [ref. 35089]). Current status: Valid as Erromyzon kalotaenia Yang, Kottelat, Yang & Chen 2012. Gastromyzontidae. Distribution: Guangxi, China. Habitat: freshwater.

katibasensis, Gastromyzon Leh [C. U. M.] & Chai [P. K. P.] 2003:277, Fig. 1a, b [The Sarawak Museum Journal 58 (no. 79); ref. 28608] Menyarin Camp at estuary of Menyarin stream with the Katibas River headwaters, Song, Katibas, Sarawak, Malasia. Holotype: SMZ FF.KTB.01-03. Paratypes: Zool Ref. Coll., Sarawak Mus. (3) •Valid as Gastromyzon katibasensis Leh & Chai 2003 -- (Tan 2006:88 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon katibasensis Leh & Chai 2003. Gastromyzontidae. Distribution: Sarawak, Malaysia. Habitat: freshwater.

kottelati, Neogastromyzon Tan [H. H.] 2006:192, Figs. 124-125 [The Borneo Suckers; ref. 28716] Sungai Hulu Leboyan at Keluwin, Danau Sentarum area, Kalimantan Barat, Borneo, Indonesia, 1°08'51"N, 112°15'32"E. Holotype: MZB 10704. Paratypes: CMK 11706 (57); ZRC 38836 (10). •Valid as Neogastromyzon kottelati Tan 2006 -- (Kottelat 2012:66 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Valid as Neogastromyzon kottelati Tan 2006. Gastromyzontidae. Distribution: Stream feeding the Danau Sentarum and Sibau area, upper Kapuas River basin, Borneo. Habitat: freshwater.

kweichowensis, Gastromyzon leveretti Fang [P.-W.] 1931:41, Fig. 1 [Sinensia v. 2 (no. 3); ref. 16365] San-ho Hsien, Kweichow [Guizhou], China, elevation 650 feet. Holotype: MMNHN 3539. Paratypes: MMNHN 3542 (1). •Valid as Beaufortia kweichowensis (Fang 1931) -- (Tang et al. 1997:21 [ref. 23718], Zheng in Pan et al. 1991:285 [ref. 23876], Zhu 1995:135 [ref. 25213], Tang & Chen 2000:7 [ref. 25445]). •Valid as Beaufortia kweichowensis (Fang 1931), subspecies kweichowensis (Fang 1931) -- (Zheng et al. 1989:261 [ref. 21202], Chen & Tang in Yue 2000:507 [ref. 25272], Kottelat 2012:58 [ref. 32367], Kottelat 2013:191 [ref. 32989], Zhang et al. 2016:157 [ref. 34477]). Current status: Valid as Beaufortia kweichowensis (Fang 1931). Gastromyzontidae. Distribution: Xijiang River, China. Habitat: freshwater.

lacustre, Crossostoma Steindachner [F.] 1908:110 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 45 (no. 8) (for 5 Mar. 1908); ref. 18802] Taiwan. Syntypes: (several) NMW 47138 (3), 48680 (3), 48682-83 (3, 3), 48690 (4). Type catalog: Ho & Shao 2011:31 [ref. 31432]. Apparently a replacement name for Homaloptera formosanum Steindachner 1908, preoccupied by Homaloptera formosana Boulenger 1894. See account of Formosania; the genus Crossostoma is preoccupied. The genus is feminine, therefore mandatory correction to lacustris. •Valid as Crossostoma lacustre Steindachner 1908 -- (Watanabe 1983:106 [ref. 8266], Tzeng & Shen 1982:164 [ref. 8410], Tzeng et al. 1990:11 [ref. 16723], Zhu 1995:132 [ref. 25213], Chen & Tang in Yue 2000:466 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Chen et al. 2002:239 [ref. 26535], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania lacustre (Steindachner 1908) -- (Novák et al. 2006:92 [ref. 28661], Chen & Fang 2009:185 [ref. 30109], Ho & Shao 2011:31 [ref. 31432], Kottelat 2012:61 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania lacustris (Steindachner 1908). Gastromyzontidae. Distribution: Taiwan. Habitat: freshwater.

laticeps, Pseudogastromyzon Chen [Y.-Y.] & Zheng [C.-Y.] in Zheng & Chen 1980:96 [101], Fig. 7 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] A mountain stream at Lianhua Shan, Haifeng Xian, Guangdong, China. Syntypes: IHASW 76-IV-8166 to 70 (5), 76-IV-8196 to 200 (5); JNU 76-IV-8171 to 75 (5), 76-IV-8202 to 06 (5). English description on p. 101. •Valid as Pseudogastromyzon laticeps Chen & Zheng 1980 -- (Zheng 1981:56 [ref. 22557], Zheng in Pan et al. 1991:282 [ref. 23876], Zhu 1995:134 [ref. 25213], Chen & Tang in Yue 2000:491 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:162 [ref. 34477]). Current status: Valid as Pseudogastromyzon laticeps Chen & Zheng 1980. Gastromyzontidae. Distribution: Guangdong Haifeng, China. Habitat: freshwater.

lepidogaster, Gastromyzon Roberts [T. R.] 1982:509, Figs. 9-10 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Mengalong River, Beaufort District, Sabah, northern Borneo, Malaysia. Holotype: BMNH 1874.11.24.5. Paratypes: FMNH 68112-14 (2, 2, 2), 51683 (1), 96017 [ex FMNH 68111] (1, c&s); IRSNB 635 (1); RMNH 7639 (3), 7635 (5), 7637 (19), 7794 (7), 7638 (1), RMNH 28926 (1). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367], Walschaerts 1987:13 [ref. 20755]. •Valid as Gastromyzon lepidogaster Roberts 1982 -- (Roberts 1989:87 [ref. 6439], Kottelat et al. 1993:51 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Martin-Smith & Tan 1998:585 [ref. 23647], Rachmatika 1998:656 [ref. 23901], Tan 2006:119 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Gastromyzon lepidogaster Roberts 1982. Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

leveretti, Gastromyzon Nichols [J. T.] & Pope [C. H.] 1927:340, Fig. 12 [Bulletin of the American Museum of Natural History v. 54 (art. 2); ref. 5747] Nodoa, Hainan Island, China. Holotype: AMNH 8366. •Valid as Gastromyzon leveretti Nichols & Pope 1927 -- (Mai 1978:214 [ref. 13511]). •Valid as Beaufortia leveretti (Nichols & Pope 1927) -- (Zheng 1981:56 [ref. 22557], Chen in Kuang et al. 1986:160 [ref. 26639], Zheng in Pan et al. 1991:284 [ref. 23876], Zhu 1995:135 [ref. 25213], Chen & Tang in Yue 2000:514 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2001:45 [ref. 25482], Kottelat 2012:58 [ref. 32367], Kottelat 2013:191 [ref. 32989], Zhang et al. 2016:157 [ref. 34477]). Current status: Valid as Beaufortia leveretti (Nichols & Pope 1927). Gastromyzontidae. Distribution: Hainan Island, China. Habitat: freshwater.

lianjiangensis, Pseudogastromyzon Zheng [C.-Y.] 1981:59 [English p. 63], Fig. 2 [Journal of Jinan University (Natural Science) v. 1; ref. 22557] Mountain creek, Danan Shan, Lianjiang system, Puning Xian, Guangdong Province, China. Syntypes: IHASW 80-VIII-0008 (1), 0024 (1); Jinan Univ. Dept. Biol. 80-VIII-0005 (1), 0022 (1), 0024 (1). •Valid as Pseudogastromyzon lianjiangensis Zheng 1981 -- (Zheng in Pan et al. 1991:281 [ref. 23876], Zhu 1995:133 [ref. 25213], Chen & Tang in Yue 2000:486 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:162 [ref. 34477]). Current status: Valid as Pseudogastromyzon lianjiangensis Zheng 1981. Gastromyzontidae. Distribution: Liangjiang and Rongjiang rivers, China. Habitat: freshwater.

lineata, Praeformosania Fang [P.-W.] 1935:78, Fig. 11 [Sinensia v. 6 (no. 1); ref. 1300] Kwang-Lau, Ling-Yuen-hsien, northwestern Kwangsi, China. Holotype (unique): NRIBAS M.737. •Valid as Vanmanenia lineata (Fang 1935) -- (Zheng et al. 1989:244 [ref. 21202], Zhu 1995:131 [ref. 25213], Chen & Tang in Yue 2000:459 [ref. 25272], Kottelat 2012:72 [ref. 32367], Yi et al. 2014:93, 96 [ref. 33322], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698] as lineat, Zhang et al. 2019:424 [ref. 36699], Deng & Zhang 2020:125 [ref. 37670]). Current status: Valid as Vanmanenia lineata (Fang 1935). Gastromyzontidae. Distribution: East Asia: Xi-jiang River drainage, Pearl River basin, Guangxi Province (southern China). Habitat: freshwater.

lineolata, Balitora Valenciennes [A.] in Cuvier & Valenciennes 1846:99 [Histoire naturelle des poissons v. 18; ref. 1011] Cochinchine, Vietnam. Syntypes: BMNH 1931.10.26.3 [ex MNHN] (1), RMNH 2011 (1), MNHN 0000-2906 (3). Type catalog: Bertin & Estève 1948:103-104 [ref. 19574]. •Valid as Sewellia lineolata (Valenciennes 1846) -- (Kottelat 1994:109 [ref. 22886], Serov 1996:199 [ref. 22874], Doi 1997:19 [ref. 22832], Roberts 1998:275 [ref. 23902], Freyhof & Serov 2000:219 [ref. 25068], Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Valid as Sewellia lineolata (Valenciennes 1846). Gastromyzontidae. Distribution: Vietnam. Habitat: freshwater.

liui, Beaufortia Chang [H.-W.] 1944:55, Fig. 3 [Sinensia v. 15 (nos 1-6); ref. 5136] Loshan and Yaan, Sichian, western China. Syntypes: ? Chang pers. coll. 2247 (1), 2446 (1). •Valid as Beaufortia liui Chang 1944 -- (Li in Ding 1994:426 [ref. 21531], Zhu 1995:134 [ref. 25213] with author as Cheng, Chen in Chen 1998:262 [ref. 23556], Chen & Tang in Yue 2000:518 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2012:58 [ref. 32367], Zhang et al. 2016:157 [ref. 34477], Zhang et al. 2019:427 [ref. 36699]). Current status: Valid as Beaufortia liui Chang 1944. Gastromyzontidae. Distribution: Upper reaches of Yangtze River, China. Habitat: freshwater.

loos, Gastromyzon Mai [D. Y.] 1978:217, Fig. 101 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Song La basin, northern Vietnam. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:47 [ref. 25482], Kottelat 2012:58 [ref. 32367], Kottelat 2013:191 [ref. 32989]). Current status: Uncertain as Pseudogastromyzon loos (Mai 1978). Gastromyzontidae. Habitat: freshwater.

lungkowensis, Paraprotomyzon Xie [C.-X.], Yang [G.-R.] & Gong [L.-X.] 1984:62, Figs. 1-2 [Journal of Huazhong Agricultural College v. 3 (no. 1); ref. 23761] Lungkow stream, Mount Shengnongjia, [Xiangxihe of upper reach of Chang Jiang [Yangtze River]], Hubei Province, China. Syntypes: (9) 826001 (1), 835274-278 (5) [Department of Aquaculture, Huazhong Agricultural College], IHASW 835279-281 (3). •Valid as Paraprotomyzon lungkowensis Xie, Yang & Gong 1984 -- (Tang 1997:110 [ref. 23059], Zhu 1995:134 [ref. 25213], Chen & Tang in Yue 2000:500 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2012:67 [ref. 32367], Zhang et al. 2016:160 [ref. 34477]). Current status: Valid as Paraprotomyzon lungkowensis Xie, Yang & Gong 1984. Gastromyzontidae. Distribution: China. Habitat: freshwater.

macrostoma, Liniparhomaloptera Wu [T.-J.], Xiu [L.-H.] & Yang [J.] 2016:276, Figs. 1, 2d, 3 [Ichthyological Exploration of Freshwaters v. 27 (no. 3) for Nov.; ref. 34909] Stream in Huoyan village, Longshan County, Hunan, China, 29°12'20"N, 109°18'37"E, elevation 427 meters. Holotype: KIZ 20150710001. Paratypes: KIZ. •Valid as Liniparhomaloptera macrostoma Wu, Xiu & Yang 2016. Current status: Valid as Liniparhomaloptera macrostoma Wu, Xiu & Yang 2016. Gastromyzontidae. Distribution: Hunan Province, China. Habitat: freshwater.

maculata, Vanmanenia Yi [W.-J.], Zhang [E] & Shen [J.-Z.] 2014:86, Figs. 2-3B [Zootaxa 3802 (no. 1); ref. 33322] Majia-He, a tributary flowing into Qing-Jiang of Chang-Jiang basin, at Enshi County, Hubei Province, south China. Holotype: IHB 200606059. Paratypes: IHB 200606061-62, 6080, 6087, 6127 (5), 81IX0356, 0676-0678, 0682-0683, 0696-0700, 0840 (12), 82V1222, 1244, 1248, 1252 (4), 1983IX1426, 1798, 1800-02, 1804, 1806-08, 1810, 1814, 1816, 1818, 1822 (14). Plus non-type specimens. •Valid as Vanmanenia maculata Yi, Zhang & Shen 2014 -- (Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698], Zhang et al. 2019:423 [ref. 36699] as maculate, Deng & Zhang 2020:122 [ref. 37670]). Current status: Valid as Vanmanenia maculata Yi, Zhang & Shen 2014. Gastromyzontidae. Distribution: East Asia: Yangtze River basin, Hubei, Hunan and Jiangxi provinces (southern China). Habitat: freshwater.

maculatum, Pseudogastromyzon Chen [Y.-Y.] & Zheng [C.-Y.] in Zheng & Chen 1980:95 [100], Fig. 6 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] East River, Lianping Xian and Xinfeng Xian, Guangdong, China. Syntypes: IHASW 76-V-7355 (1), 76-V-7357 (1), 76-V-7359 (1), 76-V-7361 (1), 76-V-7363 (1), 76-V-7365 (1), 76-V-7367 (1), 76-V-7371 (1), 76-V-7587 (1), 76-V-7593 (1); JNU 76-V-7595, 76-V-7599 (1), 76-V-7585 (1) 76-V-7788 to 89 (2). English description on p. 100. •Valid as Pseudogastromyzon maculatum Chen & Zheng 1980 -- (Zheng 1981:56 [ref. 22557], Li 1998:262 [ref. 25773] as maculatus). •Synonym of Pseudogastromyzon myersi Herre 1932 -- (Zheng et al. 1989:254 [ref. 21202] as maculatus, Chen & Tang in Yue 2000:489 [ref. 25272] as maculatus and myseri, Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:162 [ref. 34477]). Current status: Synonym of Pseudogastromyzon myersi Herre 1932. Gastromyzontidae. Habitat: freshwater.

marmorata, Sewellia Serov [D. V.] 1996:273, Fig. 1 [Voprosy Ikhtiologii v. 36 (no. 2); ref. 22874] Kon-Khanym forest, Zalai-Kontum [Gia Lai-Kontum] Province, Vietnam, 13°57'N, 107°32'E, elevation 1250 meters. Holotype: ZMMU P-19760. Paratypes: ZMMU P-19761 (13, now 11), ZFMK 18543-44 (2). Type catalog: Vasil'eva et al. 2001:27 [ref. 25714], Herder et al. 2010:114 [ref. 31087]. •Valid as Sewellia marmorata Serov 1996 -- (Freyhof & Serov 2000:223 [ref. 25068], Freyhof 2003:225 [ref. 27390], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:301 [ref. 34912]). Current status: Valid as Sewellia marmorata Serov 1996. Gastromyzontidae. Distribution: Vietnam. Habitat: freshwater.

media, Sewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:585, Fig. 24 [Freshwater fishes of Vietnam v. 2; ref. 29730] Hông Vân, Tarinh, A Sap, A Luoi, Thua Thiên, Huê, Vietnam. Holotype: Univ. Su Pham, Ha Noi. Paratypes: (1). Spelled Sewellia brevis in caption to Fig. 24; that spelling also appeared on p. 588. First reviser action by Kottelat 2012:70 [ref. 32367] selecting medius. •Valid as Sewellia medius Nguyen & Nguyen 2005 -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Valid as Sewellia medius Nguyen & Nguyen 2005. Gastromyzontidae. Distribution: Thua Thiên, Huê, Vietnam. Habitat: freshwater.

megalepis, Gastromyzon Roberts [T. R.] 1982:510, Fig. 11 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Tributary of Baleh River, between Sungai Entunau and Sungai Putai, Rajang basin, Third District, Sarawak, Borneo, East Malaysia. Holotype: FMNH 68126. Paratypes: FMNH 68127 (3), 94593 (5). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367]. •Valid as Gastromyzon megalepis Roberts 1982 -- (Kottelat et al. 1993:51 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832] as megaloepis, Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Parenti & Lim 2005:187 [ref. 28285], Tan 2006:103 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon megalepis Roberts 1982. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

meihuashanensis, Pseudogastromyzon Li [S.-Q.] 1998:260 [English p.263], Fig. 1 [Journal of Fisheries of China v. 22 (no. 3); ref. 25773] Jiulong River, Meihuashan Nature Reserve, Rjian, Fujian, China (25°25'N, 116°55'E). Holotype: FM00248. Paratypes: FM01312-01314 (3). Misspelled meihuashangensis once on p. 260. •Valid as Pseudogastromyzon meihuashanensis Li 1998 -- (Kottelat 2012:69 [ref. 32367]). Current status: Valid as Pseudogastromyzon meihuashanensis Li 1998. Gastromyzontidae. Distribution: Jiulong River, Fujian Province, China. Habitat: freshwater.

microcephala, Vanmanenia Li [X.], Zhou [W.] & Che [X.-J.] 2019:130, Figs. 1A, 3 [Zootaxa 4603 (no. 1); ref. 36698] Shunbi, Yangbi County, Yunnan, China, 25°29'23.12"N, 99°59'04.20"E. Holotype: SWFC 0309282. Paratypes: SWFC. Plus additional non-type material. •Valid as Vanmanenia microcephala Li, Zhou & Che 2019. Current status: Valid as Vanmanenia microcephala Li, Zhou & Che 2019. Gastromyzontidae. Distribution: Upper Mekong River [Lancang-jiang], Yunnan, China. Habitat: freshwater.

microlepis, Vanmanenia Nguyen [V. H.] 2005:578, Fig. 20 [Freshwater fishes of Vietnam v. 2; ref. 29730] Nâm So, Phong Thô, Lai Châu Province, [Sond da drainage], Vietnam. Holotype: NCNTTS I (lost). Paratypes: (2) lost. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Questionably a synonym of Vanmanenia crassicauda Kottelat 2000 -- (Kottelat 2012:72 [ref. 32367], Kottelat 2013:197 [ref. 32989], Kottelat 2017:93 [ref. 35488]). •Listed -- (Yi et al. 2014:95 [ref. 33322]). Current status: Synonym of Vanmanenia crassicauda Kottelat 2000. Gastromyzontidae. Habitat: freshwater.

microstoma, Homaloptera Boulenger [G. A.] 1899:228 [Annals and Magazine of Natural History (Series 7) v. 4 (no. 21) (art. 21); ref. 553] Akar River, Sarawak state, Borneo, East Malaysia. Holotype (unique): BMNH 1895.7.2.49. •Valid as Parhomaloptera microstoma (Boulenger 1899) -- (Kottelat et al. 1993:56 [ref. 23448], Kottelat & Lim 1995:237 [ref. 23210], Doi 1997:19 [ref. 22832] as Parahomaloptera, Martin-Smith & Tan 1998:587 [ref. 23647], Parenti & Lim 2005:189 [ref. 28285], Kottelat 2012:67 [ref. 32367], Kottelat 2013:195 [ref. 32989], Sulaiman et al. 2018:32 [ref. 35802], Wilkinson & Tan 2018:601 [ref. 36226]). Current status: Valid as Parhomaloptera microstoma (Boulenger 1899). Gastromyzontidae. Distribution: Northern Borneo. Habitat: freshwater.

monofasciodorsala, Vanmanenia Nguyen [V. H.] 2005:574, Fig. 18 [Freshwater fishes of Vietnam v. 2; ref. 29730] Nâm Rôm River, Dien Bien, Vietnam. Holotype: NCNTTS I (lost). Paratypes: (4) lost. Spelled monofasciodossalata (p. 547) and monofasciodosalata (p. 577), regarded as incorrect. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Questionably a synonym of Vanmanenia serrilineata Kottelat 2000-- (Kottelat 2012:72 [ref. 32367], Kottelat 2013:197 [ref. 32989], Kottelat 2017:93 [ref. 35488]). •Listed as valid -- (Yi et al.2014:96 [ref. 33322]). Current status: Synonym of Vanmanenia serrilineata Kottelat 2000. Gastromyzontidae. Habitat: freshwater.

monoloba, Homaloptera Mai [D. Y.] 1978:207, Fig. 94 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Ky-Phú Creek, northern Vietnam. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:46 [ref. 25482], Kottelat 2012:65 [ref. 32367], Kottelat 2013:194 [ref. 32989], Li et al. 2014:95 [ref. 33322]). Current status: Uncertain as Liniparhomaloptera monoloba (Mai 1978). Gastromyzontidae. Habitat: freshwater.

monolobata, Parasewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:546, Fig. 2 [Freshwater fishes of Vietnam v. 2; ref. 29730] Thu Bon River, Quang Nam River, Vietnam. Holotype (unique): Univ. Su Pham 1, Ha Noi. •Valid as Parasewellia monolobata Nguyen & Nguyen 2005 -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Valid as Sewellia monolobata Nguyen & Nguyen 2005. Gastromyzontidae. Distribution: Thu Bon River, Quang Nam Province, Vietnam. Habitat: freshwater.

monticola, Lepidoglanis Vaillant [L. L.] 1889:82 [Proceedings / ...International Congress of Zoology v. 1 (for 1889); ref. 4483] Mount Kina-Balou, headwaters of Tampassuk River, Sabah, Borneo, Malaysia. Lectotype: MNHN 1889-0084. Paralectotypes: MNHN 1889-0083 and 0085 (1, 1). Type catalog: Bertin & Estève 1948:104 [ref. 19574]. Lectotype selected by Tan 2006:61 [ref. 28716]. •Valid as Gastromyzon monticola (Vaillant 1889) -- (Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Tan & Sulaiman 2006:8 [ref. 28496], Tan 2006:58 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon monticola (Vaillant 1889). Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

multifasciatus, Paraprotomyzon Pellegrin [J.] & Fang [P.-W.] 1935:103, Figs. 1-2 [Sinensia v. 6 (no. 2); ref. 3416] Kwai-chow, E. Szechuan, China. Syntypes: MNHN 1935-0036 to 0040 (5). Type catalog: Bertin & Estève 1948:102 [ref. 19574]. An abstract appeared in Pellegrin & Fang 1935:665 [ref. 13737] [not seen]. •Valid as Paraprotomyzon multifasciatus Pellegrin & Fang 1935 -- (Zheng et al. 1989:256 [ref. 21202], Li in Ding 1994:425 [ref. 21531], Tang 1997:110 [ref. 23059], Zhu 1995:134 [ref. 25213], Chen & Tang in Yue 2000:498 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2012:67 [ref. 32367], Zhang et al. 2016:160 [ref. 34477]). Current status: Valid as Paraprotomyzon multifasciatus Pellegrin & Fang 1935. Gastromyzontidae. Distribution: Upper reaches of Changjiang River, Hongshuhe River of Zhujiang, China. Habitat: freshwater.

multiloba, Homaloptera Mai [D. Y.] 1978:208, Fig. 95 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Northern Vietnam. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:45 [ref. 25482]). •Species inquirenda et incertae sedis -- (Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989], Yi at al. 2014:95 [ref. 33322], Kottelat 2017:93 [ref. 35488]). Current status: Uncertain as Vanmanenia multiloba (Mai 1978). Gastromyzontidae. Distribution: Red River basin, Vietnam (if valid). Habitat: freshwater.

multiocellata, Beaufortia Nguyen [V. H.] 2005:592, Fig. 28 [Freshwater fishes of Vietnam v. 2; ref. 29730] Bang Giang River, Cao Bang, Vietnam. Holotype: NCNTTS I (lost). Paratypes: (2) lost. Spelled multiocellatum (p. 592) and multicellata (p. 690). Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:142 [ref. 33205]. •Questionably a synonym of Beaufortia zebroida (Fang 1930) -- (Kottelat 2012:59 [ref. 32367]). Current status: Synonym of Beaufortia zebroida (Fang 1930). Gastromyzontidae. Distribution: Bang river system, Cao Bang, Vietnam (if valid). Habitat: freshwater.

multiradiata, Glaniopsis Roberts [T. R.] 1982:521, Figs. 15b, 20 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Arur Dalan, headwater of Sungai Padapur, Baram basin, near Bario, Sarawak state, Borneo, East Malaysia, elevation 3500 feet. Holotype: IRSNB 619. Paratypes: CAS 53179 [ex IRSNB 620] (15), IRSNB 620 (15). Type catalog: Walschaerts 1987:14 [ref. 20755]. •Valid as Glaniopsis multiradiata Roberts 1982 -- (Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:236 [ref. 23210], Doi 1997:19 [ref. 22832], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Glaniopsis multiradiata Roberts 1982. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

myersi, Pseudogastromyzon Herre [A. W. C. T.] 1932:430, Fig. 1 [Lingnan Science Journal, Canton v. 11 (no. 3); ref. 10975] Hong Kong. Holotype (unique): CAS-SU 25731. Type catalog: Böhlke 1953:40 [ref. 12291]. •Valid as Pseudogastromyzon myersi Herre 1932 -- (Zheng et al. 1989:254 [ref. 21202], Zheng in Pan et al. 1991:280 [ref. 23876], Zhu 1995:133 [ref. 25213], Chen & Tang in Yue 2000:489 [ref. 25272] as myseri, Tang & Chen 2000:6 [ref. 25445] as myseri, Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:162 [ref. 34477]). Current status: Valid as Pseudogastromyzon myersi Herre 1932. Gastromyzontidae. Distribution: Dongjiang, Rongjiang rivers, China. Habitat: freshwater.

nahangensis, Vanmanenia Nguyen [V. H.] 2005:572, Fig. 17 [Freshwater fishes of Vietnam v. 2; ref. 29730] Gâm River, Nà Hang, Tuyên Quang Province, Vietnam. Holotype: NCNTTSI (lost). Species spelled nahangenis in caption to figure 17; regarded [W.N.E.] as a lapsus [misspelling]; spelled nahangensis in the main heading and that spelling is appropriate for the appropriate suffix. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Status uncertain as Vanmanenia nahangensis Nguyen 2005 -- (Kottelat 2013:197 [ref. 32989], Yi et al. 2014:96 [ref. 33322], Kottelat 2017:93 [ref. 35488]). Current status: Uncertain as Vanmanenia nahangensis Nguyen 2005. Gastromyzontidae. Distribution: Red River basin, Tuyên Quang Province, Vietnam. Habitat: freshwater.

nieuwenhuisii, Neogastromyzon Popta [C. M. L.] 1905:181 [Notes from the Leyden Museum v. 25 (no. 4) (art. 15); ref. 3549] Howong River, Mahakam basin, Borneo, Indonesia. Holotype (unique): whereabouts unknown. •Valid as Neogastromyzon nieuwenhuisii Popta 1905 -- (Roberts 1989:93 [ref. 6439], Kottelat et al. 1993:55 [ref. 23448] as nieuwenhuisi, Kottelat & Lim 1995:236 [ref. 23210] as nieuwenhuisi, Doi 1997:19 [ref. 22832], Kottelat & Widjanarti 2005:157 [ref. 28284] as aff. nieuwenhuisi, Parenti & Lim 2005:189 [ref. 28285] as cf. nieuwenhuisii, Tan 2006:182 [ref. 28716], Ng & Hadiaty 2008:143 [ref. 29735] as nieuwenhuisi, Kottelat 2012:66 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Valid as Neogastromyzon nieuwenhuisii Popta 1905. Gastromyzontidae. Distribution: Upper Mahakam and Kayan river basins, Kalimantan Timur, Borneo. Habitat: freshwater.

niulanensis, Beaufortia Chen [Z.-M.], Huang [Y.-F.] & Yang [J.-X.] 2009:639, Figs.1-3 [Acta Zootaxonomica Sinica v. 34 (no. 3); ref. 30359] Middle reach of the Niulan Jiang River, Deze Town, Zhanyi County,Yunnan Province, China, elevation 603 meters. Holotype: KIZ 2006004660. Paratypes: KIZ 2006004658 - 59 (2) Type catalog: Du et al. 2013:353 [ref. 32939]. •Valid as Beaufortia niulanensis Chen, Huang & Yang 2009 -- (Kottelat 2012:58 [ref. 32367], Zhang et al. 2016:158 [ref. 34477], Zhang et al. 2019:429 [ref. 36699]). Current status: Valid as Beaufortia niulanensis Chen, Huang & Yang 2009. Gastromyzontidae. Distribution: Niulan Jiang River drainage, Yangtze River basin, Yunnan Province, China. Habitat: freshwater.

niulanjiangensis, Paraprotomyzon Lu [Y.-F.], Lu [Z.-M.] & Mao [W.-N.] 2005:202, Fig. 1 [Acta Zootaxonomica Sinica v. 30 (no. 1); ref. 28156] Niulanjiang, 25°59'N, 103°36'E, Zhanyi County, Yunnan Province, China. Holotype: FAQ 200306005. Paratypes: FAQ 200306006 (1), 200306009 (1); IZCAS (now ASIZB) 200306007 (1), 200306008 (1); HRA 200306011 (1). •Valid as Paraprotomyzon niulanjiangensis Lu, Lu & Mao 2005 -- (Kottelat 2012:67 [ref. 32367], Zhang et al. 2016:160 [ref. 34477], Zhang et al. 2019:425 [ref. 36699]). Current status: Valid as Paraprotomyzon niulanjiangensis Lu, Lu & Mao 2005. Gastromyzontidae. Distribution: Yangtze River basin, Yunnan Province, China. Habitat: freshwater.

normani, Parhomaloptera Hora [S. L.] 1931:584, Pl. 15 [Annals and Magazine of Natural History (Series 10) v. 6 (no. 35); ref. 16299] Kontum, Annam, Vietnam. Holotype (unique): BMNH 1930.5.5.1. See Das 2003:367 [ref. 27706]. •Valid as Annamia normani (Hora 1931) -- (Rainboth 1996:126 [ref. 22772], Doi 1997:19 [ref. 22832], Kottelat 1998:60 [ref. 23436], Freyhof et al. 2000:95 [ref. 25184], Kottelat 2001:95 [ref. 25780], Kottelat 2012:57 [ref. 32367], Kottelat 2013:191 [ref. 32989], Kottelat 2015:44 [ref. 33971]). Current status: Valid as Annamia normani (Hora 1931). Gastromyzontidae. Distribution: Vietnam and Laos. Habitat: freshwater.

obscura, Parhomaloptera Vaillant [L. L.] 1902:130, Figs. 36-38 [Notes from the Leyden Museum v. 24 (note 1); ref. 4490] Kalimantan Timur [Bluu River, 0°42'Nm, 114°24'E], Borneo, Indonesia. Holotype (unique): MNHN 1903-0196. Type catalog: Bertin & Estève 1948:103 [ref. 19574]. •Synonym of Parhomaloptera microstoma (Boulenger 1899) -- (Kottelat 2012:67 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Synonym of Parhomaloptera microstoma (Boulenger 1899). Gastromyzontidae. Habitat: freshwater.

obtusirostris, Liniparhomaloptera Zheng [C.-Y.] & Chen [Y.-Y.] 1980:92 [100], Fig. 3 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] A mountain stream of West River, Xinyi Xian, Giangdong, China. Syntypes: IHASW 77-VII-80 (1), 77-VII-83 to 84 (2), 77-VII-86 to 87 (2); JNU 77-VII-88 (1), 77-VII-106 (1), 77-VII-111 (1). English description on p. 100. •Valid as Liniparhomaloptera obtusirostris Zheng & Chen 1980 -- (Zheng 1981:55 [ref. 22557], Zheng et al. 1989:243 [ref. 21202], Zheng in Pan et al. 1991:265 [ref. 23876], Zhu 1995:130 [ref. 25213], Chen & Tang in Yue 2000:450 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2012:65 [ref. 32367], Zhang et al. 2016:160 [ref. 34477], Wu et al. 2016:280 [ref. 34909]). Current status: Valid as Liniparhomaloptera obtusirostris Zheng & Chen 1980. Gastromyzontidae. Distribution: Xijiang River basin, Guangdong, China. Habitat: freshwater.

ocellatus, Gastromyzon Tan [H. H.] & Ng [P. K. L.] 2004:26, Figs. 1, 5 [The Sarawak Museum Journal v. 59 (no. 80) (new series), Special Issue 6; ref. 28058] Bau, Serikin area, Sungai Petiak, 1°21.25'N, 110°06.81'E, Sarawak basin, Sarawak, Borneo, Malaysia. Holotype: SBC. Paratypes: CAS (5); FMNH (5); SBC (8), SBC.F.15 (6); USNM (5); ZRC 47105 (55). Plus non-type material. •Valid as Gastromyzon ocellatus Tan & Ng 2004 -- (Grinang & Lim 2004:290 [ref. 28551], Tan & Leh 2006:14 [ref. 28497], Tan 2006:171 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon ocellatus Tan & Ng 2004. Gastromyzontidae. Distribution: Bau Limestone area, draining into Sarawak basin, Sarawak, Borneo, Malaysia. Habitat: freshwater.

orcicampus, Vanmanenia Kottelat [M.] 2017:88, Figs. 1-3 [Ichthyological Exploration of Freshwaters v. 28 (no. 1); ref. 35488] Nam Ngum at Ban Khangviang, Xiangkhouang Province, Laos, 19°34'47"N, 103°17'42"E, elevation 1138 meters. Holotype: MHNG 2767.094. Paratypes: CMK. •Valid as Vanmanenia orcicampus Kottelat 2017 -- (Li et al. 2019:128 [ref. 36698]). Current status: Valid as Vanmanenia orcicampus Kottelat 2017. Gastromyzontidae. Distribution: Plain of Jars, central Laos. Habitat: freshwater.

ornaticauda, Gastromyzon Tan [H. H.] & Martin-Smith [K. M.] 1998:367, Figs. 3-5 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23646] Unnamed stream at kilometer 113 on Main Line West logging track, 5°00'40"N, 117°31'40"E, Kuamut, Lahad Datu, Sabah, Malaysia. Holotype: SBM (= MUS) uncat. Paratypes: CMK 13028 (3), SBM (= MUS) uncat. (13, 8, 5), USNM uncat. (3, 4), ZRC 41569-71 (12, 9, 5). •Valid as Gastromyzon ornaticauda Tan & Martin-Smith 1998 -- (Martin-Smith & Tan 1998:587 [ref. 23647], Tan & Sulaiman 2006:8 [ref. 28496], Tan 2006:62 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon ornaticauda Tan & Martin-Smith 1998. Gastromyzontidae. Distribution: Borneo, Malaysia. Habitat: freshwater.

pachychilus, Protomyzon Chen [Y.-Y.] 1980:106 (English p. 119), Fig. 3 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] Mountain stream of West River, Guangxi Province, China. Syntypes: IHB Sinica (7). The specific name is treated as a noun. •Valid as Protomyzon pachychilus Chen 1980 -- (Zheng et al. 1989:249 [ref. 21202], Zhu 1995:132 [ref. 25213], Yue & Chen 1998:208 [ref. 26415], Chen & Tang in Yue 2000:477 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Neely et al. 2007:99 [ref. 29196] in "Protomyzon", Zhang et al. 2016:161 [ref. 34477]). •Incertae sedis species in "Erromyzon" -- (Kottelat 2012:60 [ref. 32367]). •Valid as Yaoshania pachychilus (Chen 1980) -- (Yang et al. 2012:175 [ref. 32329]). Current status: Valid as Yaoshania pachychilus (Chen 1980). Gastromyzontidae. Distribution: Brooks flowing into Xijiang River, Guangxi Province, China. Habitat: freshwater.

pariclavis, Gastromyzon Tan [H. H.] & Martin-Smith [K. M.] 1998:362, Figs. 1-2 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23646] Unnamed stream at kilometer 111 on Main Line West logging track, 5°01'05"N, 117°32'40"E, Kuamut, Lahad Datu, Sabah, Borneo, East Malaysia. Holotype: SBM (= MUS) uncat. Paratypes: CMK 14363 (3), SBM (= MUS) uncat. (5, 3), ZRC 42567-68 (4, 3). •Valid as Gastromyzon pariclavis Tan & Martin-Smith 1998 -- (Martin-Smith & Tan 1998:587 [ref. 23647], Tan & Sulaiman 2006:13 [ref. 28496], Tan 2006:155 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon pariclavis Tan & Martin-Smith 1998. Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

patella, Sewellia Freyhof [J.] & Serov [D. V.] 2000:235, Figs. 13-14 [Ichthyological Exploration of Freshwaters v. 11 (no. 3); ref. 25068] Stream Azun, about 30 kilometers east of Plieku, 14°02'34"N, 108°21'07"E, Gia Lai Province, Vietnam. Holotype: ZFMK 20962. Paratypes: ZFMK 20963-80 (18), 20981-86 (6), 20988-89 (2). Type catalog: Herder et al. 2010:114 [ref. 31087]. •Valid as Sewellia patella Freyhof & Serov 2000 -- (Freyhof 2003:225 [ref. 27390], Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:301 [ref. 34912]). Current status: Valid as Sewellia patella Freyhof & Serov 2000. Gastromyzontidae. Distribution: Gia Lai Province, Vietnam. Habitat: freshwater.

pauciradiatus, Gastromyzon Inger [R. F.] & Chin [P. K.] 1961:174 [Copeia 1961 (no. 2); ref. 9356] Tributary of Baleh River, opposite Sungai Laie, Sarawak state, Borneo, East Malaysia. Holotype: FMNH 68121. Paratypes: BMNH 1960.12.30.3 [ex FMNH 68122] (1); FMNH 68122 (orig. 23, now 17), 68123 (1); Poll coll. [ex FMNH] (2); RMNH 23741 [ex FMNH] (1). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367]. •Valid as Neogastromyzon pauciradiatus (Inger & Chin 1961) -- (Roberts 1989:93 [ref. 6439], Kottelat et al. 1993:56 [ref. 23448], Kottelat & Lim 1995:236 [ref. 23210], Doi 1997:19 [ref. 22832], Martin-Smith & Tan 1998:587 [ref. 23647], Parenti & Lim 2005:189 [ref. 28285], Tan 2006:184 [ref. 28716], Kottelat 2012:66 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Valid as Neogastromyzon pauciradiatus (Inger & Chin 1961). Gastromyzontidae. Distribution: Beleh branch of Rejang River basin, Sarawak, Borneo, Malaysia. Habitat: freshwater.

paucisquama, Crossostoma Zheng [C.-Y.] 1981:57 [English p. 62], Fig. 1 [Journal of Jinan University (Natural Science) v. 1; ref. 22557] Mountain creek, Danan Shan, Lianjiang system, Puning Xian, Guangdong Province, China. Syntypes: IHASW 80-VIII-0037 (1), 0112 (1), 0114 (1); Jinan Univ., Dept. Biol. 80-VIII-0035 to 36 (2), 0038-40 (3), 0111 (1), 0113 (1), 0115-0116 (2). See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma paucisquama Zheng 1981 -- (Zheng in Pan et al. 1991:273 [ref. 23876], Zhu 1995:132 [ref. 25213], Chen & Tang in Yue 2000:467 [ref. 25272], Tang & Chen 2000:5 [ref. 25445] as pauciquama, Zhang & Wang 2011:87 [ref. 31283] as pauciquama). •Valid as Formosania paucisquama (Zheng 1981) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:61 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania paucisquama (Zheng 1981). Gastromyzontidae. Distribution: Liangjiang, Yongjiang, and Hanjiang rivers, China. Habitat: freshwater.

peristictus, Pseudogastromyzon Zheng [C.-Y.] & Li [J.-P.] 1986:77 [English p. 83], Fig. 1 [Journal of Science and Medicine of Jinan University 1986 (no. 1); ref. 17740] Fengshun Xian, Guangdong, China. Syntypes: JNU 85VIII 109-118 (10), 120-21 (2); IHASW 85VIII 107-108 (2), 119 (1), 122 (1). •Valid as Pseudogastromyzon peristictus Zheng & Li 1986 -- (Zheng in Pan et al. 1991:279 [ref. 23876], Zhu 1995:133 [ref. 25213], Chen & Tang in Yue 2000:485 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Kottelat 2012:69 [ref. 32367], Zhang et al. 2016:162 [ref. 34477]). Current status: Valid as Pseudogastromyzon peristictus Zheng & Li 1986. Gastromyzontidae. Distribution: Rongjiang and Meijiang rivers, China. Habitat: freshwater.

pingchowensis, Praeformosania Fang [P.-W.] 1935:72, Figs. 3c, 9 [Sinensia v. 6 (no. 1); ref. 1300] Mountain streams, Ping-chow-hsien, southern Kweichow, China. Holotype: NRIBAS M.4024. Paratypes: NRIBAS M.4025 (1). •Valid as Vanmanenia pingchowensis (Fang 1935) -- (Zheng 1981:56 [ref. 22557], Zheng et al. 1989:245 [ref. 21202], Zheng in Pan et al. 1991:267 [ref. 23876], Li in Ding 1994:424 [ref. 21531], Zhu 1995:131 [ref. 25213], Chen & Tang in Yue 2000:450 [ref. 25272] as pinchowensis, Tang & Chen 2000:5 [ref. 25445], Tang et al. 2001:14 [ref. 25373], Kottelat 2012:72 [ref. 32367], Yi et al. 2014:92, 96 [ref. 33322], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698], Zhang et al. 2019:424 [ref. 36699], Deng & Zhang 2020:122 [ref. 37670]). Current status: Valid as Vanmanenia pingchowensis (Fang 1935). Gastromyzontidae. Distribution: East Asia: Zhujiang and Qingjiang Rivers and Dongting and Boyanghu Lakes, Guizhou, Guangdong, Guangxi and Hunan provinces (China). Habitat: freshwater.

pingi, Gastromyzon Fang [P.-W.] 1930:31, Pl. 1 (figs. 3-5) [Sinensia v. 1 (no. 3); ref. 1296] Stream in Lin-yueng-shien, northwestern Kwangsi, China, elevation 2100 feet. Holotype: MMNHN 909. Paratypes: AMNH 9692 (1); BMNH 1930.11.7.2 (1, lost); NHMGZAR 558-569, 622, 761-779, 832-835, 836-839, 905-906, 950-965; UMMZ 156679 (1). •Valid as Beaufortia pingi (Fang 1930) -- (Zheng et al. 1989:257 [ref. 21202], Zhu 1995:135 [ref. 25213], Chen & Tang in Yue 2000:505 [ref. 25272], Kottelat 2012:59 [ref. 32367], Zhang et al. 2016:158 [ref. 34477]). Current status: Valid as Beaufortia pingi (Fang 1930). Gastromyzontidae. Distribution: Xijiang and its branch Nanpanjiang River, China. Habitat: freshwater.

polliciformis, Beaufortia Dai [D.-Y.] in Zheng 1981:172, Fig. 142 [Freshwater fishes of Guangxi Province 1981; ref. 23151] Dong-Gui, Long-Zhou, Guangxi, China. Holotype: ASIZB [now NZMC] 60296 [ex 751842]. Paratypes: (50) 60298-74325, 751840-41; deposited in ASIZB [now NZMC] (34) and Fish. Res. Inst., Guangxi Zhuangzu Autonomous Region. Type catalog: Zhang 1996:501 [ref. 24036], Ye et al. 2015:55 [ref. 33808]. Author is D. Y. Dai. •Synonym of Beaufortia cyclica Chen 1980 -- (Zheng et al. 1989:263 [ref. 21202], Chen & Tang in Yue 2000:512 [ref. 25272], Kottelat 2012:57 [ref. 32367], Ye et al. 2015:55 [ref. 33808], Zhang et al. 2016:157 [ref. 34477]). Current status: Synonym of Beaufortia cyclica Chen 1980. Gastromyzontidae. Habitat: freshwater.

polylepis, Beaufortia Chen [Y.-R.] in Zheng, Chen & Huang 1982:397 (English p. 402), Fig. 4 [Zoological Research v. 3 (no. 4); ref. 21355] Yiliang Xian, Yunnan Province, China. Syntypes: KIZ 774311 (1), 774315 (1), 774323-24 (1, 1), 774326 (1), 774330 (1), 774338 (1), 774342-43 (1, 1), 774347 (1). Type catalog: Du et al. 2013:353 [ref. 32939]. •Valid as Beaufortia polylepis Chen 1982 -- (Zheng et al. 1989:258 [ref. 21202], Zhu 1995:135 [ref. 25213], Chen & Tang in Yue 2000:513 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Kottelat 2012:59 [ref. 32367], Zhang et al. 2016:158 [ref. 34477]). Current status: Valid as Beaufortia polylepis Chen 1982. Gastromyzontidae. Distribution: Nanpang River, branch of Xijiang River, China. Habitat: freshwater.

polylepis, Vanmanenia Pan [J.], Liu [C.] & Zheng [W.] 1983:107 [English p. 108], Fig. 2 [Journal of the Hua Nan Teacher's Univ., Nat. Sci. Ed. 1983 (no. 2); ref. 21354] Beijiang River, Guangdong, China. Holotype: DBSCNU 3194. Paratypes: DBSCNU 3218 (1). Original genus should have been Vanmanenia. •Synonym of Vanmanenia pingchowensis (Fang 1935) -- (Zheng et al. 1989:246 [ref. 21202], Zheng in Pan et al. 1991:267 [ref. 23876], Chen & Tang in Yue 2000:456 [ref. 25272], Kottelat 2012:72 [ref. 32367]). •Valid as Vanmanenia polylepis Pan, Liu & Zheng 1983 -- (Yi et al. 2014:94 [ref. 33322], Kottelat 2017:94 [ref. 35488], Li et al. 2019:128 [ref. 36698], Deng & Zhang 2020:122 [ref. 37670]). Current status: Valid as Vanmanenia polylepis Pan, Liu & Zheng 1983. Gastromyzontidae. Distribution: East Asia: Pearl River basin, Guangdong Province (southern China). Habitat: freshwater.

polylobata, Parasewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:548, Fig. 3 [Freshwater fishes of Vietnam v. 2; ref. 29730] Thu Bon River, Quang Nam Province, Vietnam. Holotype (unique): Univ. Su Pham 1, Ha Noi. Spelled polyloba in caption to Fig.3; that spelling regarded [W.N.E] as a lapsus (misspelling) as all 3 new species in this genus end in lobata. Kottelat 2012 acts as first reviser selecting polylobata over monolobata. •Synonym of Parasewellia monolobata Nguyen & Nguye 2005 -- (Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Synonym of Sewellia monolobata Nguyen & Nguyen 2005. Gastromyzontidae. Distribution: Thu Bon river drainage, Quang Nam Province, Vietnam (if valid). Habitat: freshwater.

praestans, Gastromyzon Tan [H. H.] 2006:96, Figs. 50-52 [The Borneo Suckers; ref. 28716] Mainstream of Sungai Pinoh 20-60 kilometers upstream from Nangapinoh, 0°27.5 - 41.5'S, 111°39 - 45.5'E, Kapuas basin, Kalimantan Barat, Borneo, Indonesia. Holotype: MZB 3450. Paratypes: CAS 49321 (1); CMK 10569 (5); MZB 3452 (1), 3453 (1), 3454 (1); USNM 230248 (1). •Valid as Gastromyzon praestans Tan 2006 -- (Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon praestans Tan 2006. Gastromyzontidae. Distribution: Kapuas River basin, Kotawaringin, Katingan and possibly Barito River basins, Borneo. Habitat: freshwater.

pseudostriata, Vanmanenia Zhu [Y.], Zhao [Y.-H.], Liu [S.-W.] & Niu [C.-Y.] in Zhang, Yang, Zhao & Pan 2019:419 [424], Fig. p. 420 ? [ ref. 36699] Puduhe River basin, Luquan County, Kunming City, Yunnan Province, China. Holotype: ASIZB 205511. Paratype: KIZ-873071 (1). •Valid as Vanmanenia pseudostriata Zhu, Zhao, Liu & Niu 2019. Current status: Valid as Vanmanenia pseudostriata Zhu, Zhao, Liu & Niu 2019. Gastromyzontidae. Distribution: Puduhe River drainage, upper Yangtze River basin, Yunnan, China. Habitat: freshwater.

psiloetron, Gastromyzon Tan [H. H.] 2006:126, Pl. 14A; figs. 71-73 [The Borneo Suckers; ref. 28716] Lalut (= Sungai) Birai next to Lalut Birai Field Sta., feeder stream to Enggeng Bio which drains into the Bahau River, 2°52.58'N, 115°49.19'E, Kayan basin, Kalimantan Timur, Borneo, elevation 350 meters. Holotype: MZB 9348. Paratypes: MZB 9349 (7); RMNH 7635 (5), 7637 (19), 7638 (1), 7639 (3), 7794 (4); ZRC 47062 (7), 47063 (18). •Valid as Gastromyzon psiloetron Tan 2006 -- (Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon psiloetron Tan 2006. Gastromyzontidae. Distribution: Upper Kayan and Mahakam River basins, Kalimantan Timur, and the upper Kapuas River basin, Kalimantan Barat, Borneo, Indonesia. Habitat: freshwater.

pterolineata, Sewellia Roberts [T. R.] 1998:277, Fig. 4 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23902] Trac Khuc [Khu] River, Nghia Bin Province [Quang Nghia Province], Vietnam. Holotype (unique): RMNH 31832. •Valid as Sewellia pterolineata Roberts 1998 -- (Freyhof & Serov 2000:229 [ref. 25068], Freyhof 2003:225 [ref. 27390], Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:300 [ref. 34912]). Current status: Valid as Sewellia pterolineata Roberts 1998. Gastromyzontidae. Distribution: Vietnam. Habitat: freshwater.

punctulatus, Gastromyzon Inger [R. F.] & Chin [P. K.] 1961:173, Fig. 5A [Copeia 1961 (no. 2); ref. 9356] Sungai Dapu River near mouth of Sungei Putai, 1°48'N, 113°45'E, Sarawak state, Borneo, East Malaysia. Holotype: FMNH 68116. Paratypes: BMNH 1960.12.30.2 [ex FMNH 68117] (1); FMNH 68117 (11, now 7), 68118 (6), 68124 (1); Poll coll. [ex FMNH 68177] (2); RMNH 23742 [ex FMNH 68117] (1). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367] as 16 specimens from 3 localities. •Valid as Gastromyzon punctulatus Inger & Chin 1961 -- (Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Martin-Smith & Tan 1998:585 [ref. 23647], Rachmatika 1998:656 [ref. 23901], Parenti & Lim 2005:187 [ref. 28285], Tan & Sulaiman 2006:9 [ref. 28496], Tan 2006:82 [ref. 28716], Kottelat 2012:63 [ref. 32367], Kottelat 2013:193 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Gastromyzon punctulatus Inger & Chin 1961. Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

qiongzhongensis, Liniparhomaloptera disparis Zheng [C.-Y.] & Chen [Y.-Y.] 1980:91 [99], Fig. 2 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] Wanquan River, Qiongzhong Xian, Hainan Island, China. Syntypes: IHASW 76-V-9621 to 24 (4), 76-V-9626 (1); JNU 76-V-9629 to 30 (2), 76-V-9632 (1), 76-V-9634 (1). English description on p. 99. Species spelled qiongzhengensis in key and qiongzhogensis in caption to figure 2, but spelled qiongzhongensis in main account and English summary. The spelling qiongzhongensis is regarded as correct. •Synonym of Liniparhomaloptera disparis (Lin 1934), but a valid subspecies qiongzhongensis Zheng & Chen 1980 as described -- (Zheng 1981:55 [ref. 22557] as qioungshengensis, Chen in Kuang et al. 1986:157 [ref. 26639], Zheng in Pan et al. 1991:264 [ref. 23876], Zhu 1995:130 [ref. 25213], Chen & Tang in Yue 2000:448 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Zhang et al. 2016:160 [ref. 34477]). •Valid as Liniparhomaloptera qiongzhongensis Zheng & Chen 1980 -- (Kottelat 2012:65 [ref. 32367], Kottelat 2013:194 [ref. 32989], Wu et al. 2016:280 [ref. 34909]). Current status: Valid as Liniparhomaloptera qiongzhongensis Zheng & Chen 1980. Gastromyzontidae. Distribution: Hainan Island, China. Habitat: freshwater.

ridens, Gastromyzon Roberts [T. R.] 1982:515, Fig. 14 [Proceedings of the California Academy of Sciences (Series 4) v. 42 (no. 20); ref. 6689] Sungai Pinoh, 20-60 kilometers upstream from Nangapinoh, Kapuas basin, Borneo, Indonesia,. Holotype: MZB 4355. Paratypes: BMNH 1982.3.29.113 (1), 1893.3.6.270-275 (6), CAS 49322 (2), FMNH 94228 (1), MNHN 1982-0691 (1), RMNH 28864 (1), CAS-SU 32378 (9), USNM 230249 (2 not 1). Type catalog: Ibarra & Stewart 1987:38 [ref. 12367]. •Valid as Gastromyzon ridens Roberts 1982 -- (Roberts 1989:88 [ref. 6439], Kottelat et al. 1993:52 [ref. 23448], Kottelat & Lim 1995:235 [ref. 23210], Doi 1997:19 [ref. 22832], Tan & Martin-Smith 1998:366 [ref. 23646], Rachmatika 1998:656 [ref. 23901], Tan & Leh 2006:9 [ref. 28497], Tan 2006:132 [ref. 28716], Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon ridens Roberts 1982. Gastromyzontidae. Distribution: Borneo, Indonesia. Habitat: freshwater.

russulus, Gastromyzon Tan [H. H.] 2006:163, Pl. 16B; figs. 103-105 [The Borneo Suckers; ref. 28716] Enggeng (=Sungai) Bio, drains into Bahau River, up to 6 riffles upstream of field station, 2°52.58'N, 115°49.19'E, Bahau, Kayan basin, Kalimantan Timur, elevation 350 meters. Holotype: MZB 10702. Paratypes: RMNH 34802 (2); ZRC 47100 (2), 47101 (1), 47102 (1). •Valid as Gastromyzon russulus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon russulus Tan 2006. Gastromyzontidae. Distribution: Kayan and Mahakam River basins, Kalimantan Timur, Borneo, Indonesia. Habitat: freshwater.

scitulus, Gastromyzon Tan [H. H.] & Leh [C. U. M.] 2006:3, Figs. 1-2 [Zootaxa No. 1126; ref. 28497] Serian, Sungai Kuhas, 6.9 kilometers from Tebeu Tebakang turnoff, 5.8 kilometers inside right road, 1°09'10.0"N, 110°29"22.7"E, Sadong River basin, Sarawak, Borneo. Holotype: SM uncat. Paratypes: CMK 11959 (3); SM uncat. (9); ZRC 47035 (5), 47036 (3), 47037 (6), 47038 (9). Plus non-type material. •Valid as Gastromyzon scitulus Tan & Leh 2006 -- (Tan 2006:111 [ref. 28716], Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon scitulus Tan & Leh 2006. Gastromyzontidae. Distribution: Sadong River basin, Sarawak, Borneo, Malaysia. Habitat: freshwater.

serrilineata, Vanmanenia Kottelat [M.] 2000:76, Fig. 68 [Journal of South Asian Natural History v. 5 (no. 1); ref. 25040] Nam tha at Ban Finho, about 14 kilometers north of Luang Nam Tha, 21°04'44"N, 101°24'09"E, Louangnamtha Province, Laos. Holotype: ZRC 45392. Paratypes: CMK 14025 (1), 14203 (4), 14285 (26); LARRI uncat. (5); NRM 44904 (8); ZRC 45393 (8). •Valid as Vanmanenia serrilineata Kottelat 2000 -- (Kottelat 2001:119 [ref. 25780], Kottelat 2012:72 [ref. 32367], Kottelat 2013:197 [ref. 32989], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:95 [ref. 35488], Li et al. 2019:136 [ref. 36698]). Current status: Valid as Vanmanenia serrilineata Kottelat 2000. Gastromyzontidae. Distribution: Upper Mekong basin, Laos, Vietnam and Nanla-he River subbasin, Yunnan, China. Habitat: freshwater.

sinensis, Protomyzon Chen [Y.-Y.] 1980:106 (English p. 119), Fig. 4 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] West River, Lonsheng Xian, Lipu Xian and Jinxiu Xian, Guangxi Province, China. Syntypes: Mus. Inst. Hydrobiol. Acad. Sinica 75-IV-1801-1805 (5), 2572-2574 (3), 2579 (1), 2581 (1), 2804 (1), 3217-3220 (4). •Valid as Protomyzon sinensis Chen 1980 -- (Zheng et al. 1989:250 [ref. 21202], Zhu 1995:132 [ref. 25213], Chen & Tang in Yue 2000:479 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Kottelat 2001:46 [ref. 25482] as "Protomyzon" cf. sinensis). •Valid as Erromyzon sinensis (Chen 1980) -- (Kottelat 2004:306 [ref. 27994], Neely et al. 2007:99 [ref. 29196], Yang et al. 2012:185 [ref. 32329], Kottelat 2012:60 [ref. 32367], Kottelat 2013:192 [ref. 32989], Zhang et al. 2016:158 [ref. 34477], Xiu & Yang 2017:[3] [ref. 35089]). Current status: Valid as Erromyzon sinensis (Chen 1980). Gastromyzontidae. Distribution: Xijiang River, China. Habitat: freshwater.

songboensis, Sewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:581, Fig. 22 [Freshwater fishes of Vietnam v. 2; ref. 29730] A Sâp-A Luoi, Thua Thiên, Huê, Vietnam. Holotype: Univ. Su Pham, Ha Noi. Paratypes: (3). •Synonym of Sewellia lineolata (Valenciennes 1846) -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Synonym of Sewellia lineolata (Valenciennes 1846). Gastromyzontidae. Distribution: Huê, Vietnam (if valid). Habitat: freshwater.

speciosa, Sewellia Roberts [T. R.] 1998:279, Fig. 5 [Raffles Bulletin of Zoology v. 46 (no. 2); ref. 23902] Lower Xe Nam Noi, 1.5 kilometers downstream from bridge on route 232 to Attapeu, 26 kilometers from Ban Nam Tang, Laos, elevation 270 meters. Holotype: ZRC 40368. Paratypes: MNHN 1997-003 (21), USNM 344490 (21), ZRC 40369-72 (49, 148, 10, 8). •Valid as Sewellia speciosa Roberts 1998 -- (Freyhof & Serov 2000:230 [ref. 25068], Kottelat 2001:119 [ref. 25780], Freyhof 2003:225 [ref. 27390], Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989], Endruweit & Nguyen 2016:300 [ref. 34912]). Current status: Valid as Sewellia speciosa Roberts 1998. Gastromyzontidae. Distribution: Laos. Habitat: freshwater.

spectabilis, Gastromyzon Tan [H. H.] 2006:161, Pl. 16A; figs. 101-102 [The Borneo Suckers; ref. 28716] Taman Reserve Sabah, Danum Valley survey, Sungai Danum camp II, Lahad Datu, Sabah, Malaysia. Holotype: MUS 0366. Paratypes: JPS F/86/27/1 (2); MUS [ex 0366] (1); ZRC 47098 (9), 47099 (1). •Valid as Gastromyzon spectabilis Tan 2006 -- (Kottelat 2012:64 [ref. 32367]). Current status: Valid as Gastromyzon spectabilis Tan 2006. Gastromyzontidae. Distribution: Segama River basin, eastern Sabah, Malaysia. Habitat: freshwater.

stellatus, Gastromyzon Tan [H. H.] 2006:136, Pl. 14C; figs. 80-82 [The Borneo Suckers; ref. 28716] Sungai Petiak, 1°21.25'N, 110°06.81'E, Serikin area, Bau, Sarawak, Malaysia. Holotype: SM uncat. Paratypes: BMNH 1893.3.6.270-275 (6); CAS uncat. (5); FMNH uncat. (5); SM uncat. (19); USNM uncat. (5); ZRC 47070 (40). •Valid as Gastromyzon stellatus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon stellatus Tan 2006. Gastromyzontidae. Distribution: Sarawak, Sadong and Lupar river basins of southern Sarawak, Borneo, Malaysia. Habitat: freshwater.

stenosoma, Homalosoma Boulenger [G. A.] 1901:270, Pl. 23 (fig. 3) [Proceedings of the Zoological Society of London 1901, v. 1 (pt 2) (art. 3); ref. 5127] Ningpo, China. Holotype (unique): BMNH 1901.3.6.16 (lost). •Valid as Vanmanenia stenosoma (Boulenger 1901) -- (Zhu 1995:130 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:452 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2012:73 [ref. 32367], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698], Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:122 [ref. 37670]). Current status: Valid as Vanmanenia stenosoma (Boulenger 1901). Gastromyzontidae. Distribution: East Asia: Yangtze River system and Boyang Lake, Ningbo City, Zhejiang (southern China). Habitat: freshwater.

stigmata, Crossostoma Nichols [J. T.] 1926:4, Fig. 3 [American Museum Novitates No. 224; ref. 15601] Fukien [Fukien], China. Holotype (unique): AMNH 8476. See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma stigmata Nichols 1926 -- (Zheng in Pan et al. 1991:274 [ref. 23876], Zhu 1995:132 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:469 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania stigmata (Nichols 1926) -- (Novák et al. 2006:92 [ref. 28661], Kottelat 2012:61 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania stigmata (Nichols 1926). Gastromyzontidae. Distribution: From Minjiang to Hanjiang rivers, China. Habitat: freshwater.

striata, Vanmanenia Chen [Y.-Y.] 1980:101 (English p. 118), Fig. 2 [Acta Hydrobiologica Sinica v. 7 (no. 1); ref. 6901] Yuanjiang (Red River) River, Xiaguan Shi, Yunnan Province, China. Syntypes: Mus. Inst. Hydrobio. Acad. Sinica 585280-85 (6), 585446 (1), 585450 (1), 585480 (1), 585482 (1), 646483-85 (3). •Synonym of Vanmanenia tetraloba (Mai 1978) -- (Chen & Tang in Yue 2000:463 [ref. 25272]). •Valid as Vanmanenia striata Chen 1980 -- (Chen in Chen 1998:261 [ref. 23556], Kottelat 2000:75 [ref. 25040], Tang & Chen 2000:5 [ref. 25445], Kottelat 2001:46 [ref. 25482], Kottelat 2012:73 [ref. 32367], Kottelat 2013:197 [ref. 32989], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:137 [ref. 36698], Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:125 [ref. 37670]). Current status: Valid as Vanmanenia striata Chen 1980. Gastromyzontidae. Distribution: East Asia: upper Red River [Yuan-jiang] basin, Yunnan Province (China). Habitat: freshwater.

szechuanensis, Gastromyzon Fang [P.-W.] 1930:36, Fig. 7 [Contributions from the Biological Laboratory of the Science Society of China. (Zoological Series) v. 6 (no. 4); ref. 16080] Omei-shien, western Szechuan, China, elevation 1900 feet. Holotype: Biol. Lab. Sci. Soc. China 2468. Paratypes: Biol. Lab. Sci. Soc. China 2469-70 (2). •Valid as Beaufortia szechuanensis (Fang 1930) -- (Li in Ding 1994:427 [ref. 21531], Zhu 1995:135 [ref. 25213], Tang et al. 1997:21 [ref. 23718], Chen & Tang in Yue 2000:512 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Tang et al. 2001:14 [ref. 25373], Chen et al. 2009:641 [ref. 30359], Kottelat 2012:59 [ref. 32367], Zhang et al. 2016:158 [ref. 34477], Zhang et al. 2019:431 [ref. 36699]). Current status: Valid as Beaufortia szechuanensis (Fang 1930). Gastromyzontidae. Distribution: Upper reaches of Changjiang River and its branch Qin River, Yangtze River basin, China. Habitat: freshwater.

tengi, Crossostoma Watanabe [M.] 1983:111, Figs. 5, 6b, 7b [Bulletin of the Biogeographical Society of Japan v. 38 (no. 11); ref. 8266] Kaochung, Kaoshiung County, Taiwan. Holotype: WIRI 20. Paratypes: WIRI 18-19 (2), 88 (1), 147-148 (2), 150 (1), 153 (1), 156 (1), 164-65 (2). Type catalog: Ho & Shao 2011:32 [ref. 31432]. See account of Formosania; the genus Crossostoma is preoccupied. The genus is feminine, therefore mandatory correction to lacustris. •Synonym of Crossostoma lacustre Steindachner 1908 -- (Tzeng et al. 1990 [ref. 16723]). •Valid as Formosania tengi (Watanabe 1893) -- (Kottelat 2012:61 [ref. 32367]). •Synonym of Formosania lacustre (Steindachner 1908) -- (Novák et al. 2006:92 [ref. 28661], Ho & Shao 2011:32 [ref. 31432], Zhang et al. 2016:159 [ref. 34477]). Current status: Synonym of Formosania lacustris (Steindachner 1908). Gastromyzontidae. Distribution: Taiwan. Habitat: freshwater.

tetraloba, Homaloptera Mai [D. Y.] 1978:210, Fig. 97 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Fast-running creeks in northern Vietnam. Syntypes: DVZUT. •Status uncertain as Homalosoma tetraloba (Mai 1978) -- (Kottelat 2001:46 [ref. 25482], Li at al. 2013:95 [ref. 33322]). •Species inquirenda et incertae sedis -- (Kottelat 2012:71 [ref. 32367], Kottelat 2013:197 [ref. 32989]). •Valid as Vanmanenia tetraloba (Mai 1978) -- (Zhu 1995:131 [ref. 25213], Chen & Tang in Yue 2000:463 [ref. 25272], Zhang et al. 2016:163 [ref. 34477], Kottelat 2017:93 [ref. 35488], Li et al. 2019:140 [ref. 36698], Zhang et al. 2019:423 [ref. 36699]). Current status: Valid as Vanmanenia tetraloba (Mai 1978). Gastromyzontidae. Distribution: Lanchangjiang River, Red River basin, Vietnam and Lixian-jiang drainage, China. Habitat: freshwater.

tetralobata, Parasewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:545, Fig. 1 [Freshwater fishes of Vietnam v. 2; ref. 29730] Thu Bon River, Quang Nam, Vietnam. Holotype (unique): Univ. Su Pham 1, Ha Noi. •Synonym of Sewellia albisuera Freyhof 2003 -- (Kottelat 2012:70 [ref. 32367], Kottelat 2013:195 [ref. 32989]). Current status: Synonym of Sewellia albisuera Freyhof 2003. Gastromyzontidae. Distribution: Thu Bon River, Quang Nam, Vietnam. Habitat: freshwater.

thuathienensis, Annamia Nguyen [V. H.] in Nguyen 2005:579, Fig. 21 [Freshwater fishes of Vietnam v. 2; ref. 29730] Bô River, Thua Thiên Province, Huê, Vietnam. Holotype: Univ. Su Pham, Ha Noi. Paratypes: (3). •Valid as Annamia thuathienensis Nguyen 2005, as a species inquirenda -- (Kottelat 2012:57 [ref. 32367], Kottelat 2013:191 [ref. 32989]). Current status: Valid as Annamia thuathienensis Nguyen 2005. Gastromyzontidae. Distribution: Bô River, Thua Thiên Province, Huê, Vietnam. Habitat: freshwater.

tinkhami, Crossostoma Herre [A. W. C. T.] 1934:286 [Lingnan Science Journal, Canton v. 13 (no. 2); ref. 10988] Loh Fau Shan, Kwangtung Province, China, elevation 3500 feet. Holotype: LNHSM [Lingnan Nat. Hist. Survey and Museum] 10988. Paratypes: CAS-SU 29084 (1), 1 other paratype deposited with holotype. Type catalog: Böhlke 1953:40 [ref. 12291]. See account of Formosania; the genus Crossostoma is preoccupied. •Valid as Crossostoma tinkhami Herre 1934 -- (Zheng 1981:56 [ref. 22557], Zheng et al. 1989:248 [ref. 21202], Zheng in Pan et al. 1991:275 [ref. 23876], Zhu 1995:132 [ref. 25213], Li 1998:262 [ref. 25773], Chen & Tang in Yue 2000:474 [ref. 25272], Tang & Chen 2000:6 [ref. 25445], Zhang & Wang 2011:87 [ref. 31283]). •Valid as Formosania tinkhami (Herre 1934) -- (Kottelat 2012:61 [ref. 32367], Zhang et al. 2016:159 [ref. 34477]). Current status: Valid as Formosania tinkhami (Herre 1934). Gastromyzontidae. Distribution: Dongjiang River, China. Habitat: freshwater.

trakhucensis, Sewellia Nguyen [H. D.] & Nguyen [V. H.] in Nguyen 2005:583, Fig. 23 [Freshwater fishes of Vietnam v. 2; ref. 29730] Trà Khúc River, Son Hà, Quang Ngai Province, Vietnam. Holotype: Univ. Su Pham, Ha Noi. Paratypes (2). •Valid as Sewellia trakhucensis Nguyen & Nguyen 2005 -- (Kottelat 2012:71 [ref. 32367], Kottelat 2013:196 [ref. 32989]). Current status: Valid as Sewellia trakhucensis Nguyen & Nguyen 2005. Gastromyzontidae. Distribution: Quang Ngai Province, Vietnam. Habitat: freshwater.

trifasciodorsalata, Vanmanenia Nguyen [V. H.] 2005:576, Fig. 19 [Freshwater fishes of Vietnam v. 2; ref. 29730] Nâm Rôm River, Dien Bien, Vietnam. Holotype: NCNTTS I (lost). Paratypes: (8) lost. Spelled triofasciodossalata in main heading, trifasciosalata in text, and trifaseudorsala in figure caption, regarded as in error; correct in text on p. 575 (W.N.E.). Kottelat 2012:73 [ref. 32367] selected trifasciodorsalata over trifasciodorsala. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Listed as Vanmanenia trifasciodorsalata Nguyen 2005 -- (Li et al. 2014:96 [ref. 33322]). •Questionably a synonym of Vanmanenia serrilineata Kottelat 2000 -- (Kottelat 2012:73 [ref. 32367], Kottelat 2013:197 [ref. 32989], Kottelat 2017:93 [ref. 35488]). Current status: Synonym of Vanmanenia serrilineata Kottelat 2000. Gastromyzontidae. Habitat: freshwater.

triocellata, Beaufortia Nguyen [V. H.] 2005:590, Fig. 27 [Freshwater fishes of Vietnam v. 2; ref. 29730] Cao Bang, Vietnam. Holotype: NCNTTS I, Bac Ninh (lost). Paratypes: (6) lost. Types at RIA 1 [= NCNTTSI] are lost according to Endruweit 2014:144 [ref. 33205]. •Questionably as synonym of Beaufortia zebroida (Fang 1930) -- (Kottelat 2012:59 [ref. 32367]). Current status: Uncertain as Beaufortia zebroida (Fang 1930). Gastromyzontidae. Distribution: Bang river system, Cao Bang, Vietnam (if valid). Habitat: freshwater.

tungpeiensis, Pseudogastromyzon Chen [J. T. F.] & Liang [Y.-S.] 1949:158, Fig. 1 [Quarterly Journal of the Taiwan Museum (Taipei) v. 2 (no. 4); ref. 13005] Kwangtung, China. Holotype: Kwangtung Prov. Coll.. Let. Sci. Dept. Biol. 0651. Paratypes: Kwangtung Prov. College Let. Sci. Dept. Biol. 0652-0657 (6). •Valid as Pseudogastromyzon tungpeiensis Chen & Liang 1949 -- (Zheng 1981:56 [ref. 22557], Li 1998:262 [ref. 25773]). •Questionably a synonym of Pseudogastromyzon changtingensis Liang 1942 - (Kottelat 2012:68 [ref. 32367]). •Synonym of Pseudogastromyzon changtingensis Liang 1942, but a valid subspecies tungpeiensis Chen & Liang 1949 -- (Zheng et al. 1989:252 [ref. 21202], Zheng in Pan et al. 1991:276 [ref. 23876], Zhu 1995:133 [ref. 25213], Chen & Tang in Yue 2000:494 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Zhang et al. 2016:161 [ref. 34477]). Current status: Synonym of Pseudogastromyzon changtingensis Liang 1942. Gastromyzontidae. Distribution: Beijiang and Xijiang rivers, China (if valid). Habitat: freshwater.

umbrus, Gastromyzon Tan [H. H.] 2006:106, Figs. 59-61 [The Borneo Suckers; ref. 28716] Sungai Bantul at Bantul logging camp, draining to Sungai Tulit, 04°8'54"N, 116°48'18"E, Sungai Sebuku basin, Kalimantan Timur, Borneo. Holotype: MZB 16471. Paratypes: CMK 9462 (5). •Valid as Gastromyzon umbrus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:193 [ref. 32989]). Current status: Valid as Gastromyzon umbrus Tan 2006. Gastromyzontidae. Distribution: Kalabakan and Sebuku river basins, northeastern Borneo, Indonesia. Habitat: freshwater.

ventrosquamata, Homaloptera Mai [D. Y.] 1978:209, Fig. 96 [Identification of the fresh-water fishes of North Viet Nam v. 1; ref. 13511] Northern Vietnam [Bac Giang and Bac Ninh provinces]. Syntypes: DVZUT. •Status uncertain -- (Kottelat 2001:46 [ref. 25482]). •Species inquirenda et incertae sedis -- (Kottelat 2012:71 [ref. 32367], Kottelat 2013:197 [ref. 32989], Yi et al. 2014:96 [ref. 33322], Kottelat 2017:93 [ref. 35488]). Current status: Uncertain as Vanmanenia ventrosquamata (Mai 1978). Gastromyzontidae. Distribution: Cau watershed, Red River basin, Vietnam. Habitat: freshwater.

venustus, Gastromyzon Tan [H. H.] & Sulaiman [Z. H.] 2006:13, Figs. 5-6 [Zootaxa No. 1117; ref. 28496] Sungai Belalong, in front and near to Kuala Belalong Field Studies Centre, 4°32.50"N, 115°09"27.6"E, Temburong River, Temburong District, Brunei Darussalam, elevation 80 meters. Holotype: UBD uncat. Paratypes: UBD uncat. (3). Plus non-type material. Second author also seen as Zohrah. •Valid as Gastromyzon venustus Tan & Sulaiman 2006 -- (Tan 2006:159 [ref. 28716], Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989], Sulaiman et al. 2018:31 [ref. 35802]). Current status: Valid as Gastromyzon venustus Tan & Sulaiman 2006. Gastromyzontidae. Distribution: Temburong River, Brunei Darussalam, Borneo. Habitat: freshwater.

viriosus, Gastromyzon Tan [H. H.] 2006:165, Figs. 106-107 [The Borneo Suckers; ref. 28716] Sungai Sawi, Tatau District, Bintulu, Sarawak, Borneo, Malaysia. Holotype: ZRC 39709. Paratypes: SBC [ex ZRC 47217] (2); ZRC 39707 (1), 39718 (2), 39724 (1) •Valid as Gastromyzon viriosus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Gastromyzon viriosus Tan 2006. Gastromyzontidae. Distribution: Tatau River basin, central Sarawak, Borneo, Malaysia. Habitat: freshwater.

whiteheadi, Homaloptera Vaillant [L. L.] 1893:92, Pl. 1 (figs. 2-2d) [Nouvelles Archives du Muséum d'Histoire Naturelle, Paris (Série 3) v. 5; ref. 14537] Mount Kina Balu [Kinabalu], sabah, Borneo, Malaysia. Syntypes: MNHN 1889-0086 (1), 1889-0087 (1), and 1889-0088 (6). Type catalog: Bertin & Estève 1948:102 [ref. 19574] with 1889-0087 as the holotype. MNHN 1889-0087 technically is the described syntype. •Valid as Protomyzon whiteheadi (Vaillant 1893) -- (Kottelat et al. 1993:56 [ref. 23448], Kottelat & Lim 1995:237 [ref. 23210], Doi 1997:19 [ref. 22832], Martin-Smith & Tan 1998:588 [ref. 23647], Kottelat 2004:301 [ref. 27994], Kottelat 2012:68 [ref. 32367], Kottelat 2013:195 [ref. 32989], Sulaiman et al. 2018:32 [ref. 35802]). Current status: Valid as Protomyzon whiteheadi (Vaillant 1893). Gastromyzontidae. Distribution: Borneo. Habitat: freshwater.

xinyiensis, Vanmanenia Zheng [C.-Y.] & Chen [Y.-Y.] 1980:94 [100], Fig. 5 [Acta Zootaxonomica Sinica v. 5 (no. 1); ref. 4838] A mountain stream of West River, Xinyi Xian, Guangdong, China. Syntypes: IHASW 77-VII-70 (1), 77-VII-75 (1), 77-VII-77 to 79 (3); JNU 77-VII-81 (1), 77-VII-90 (1), 77-VII-475 (1). English description on p. 100. •Valid as Vanmanenia xinyiensis Zheng & Chen 1980 -- (Zheng 1981:56 [ref. 22557], Zheng et al. 1989:247 [ref. 21202], Zheng in Pan et al. 1991:270 [ref. 23876], Zhu 1995:131 [ref. 25213], Chen & Tang in Yue 2000:462 [ref. 25272], Tang & Chen 2000:5 [ref. 25445], Kottelat 2012:73 [ref. 32367], Yi et al. 2014:96 [ref. 33322], Zhang et al. 2016:164 [ref. 34477], Kottelat 2017:94 [ref. 35488], Li et al. 2019:143 [ref. 36698], Zhang et al. 2019:423 [ref. 36699], Deng & Zhang 2020:125 [ref. 37670]). Current status: Valid as Vanmanenia xinyiensis Zheng & Chen 1980. Gastromyzontidae. Distribution: East Asia: Zhujiang and Xijiang River basins, Guangdong Province, China. Habitat: freshwater.

yangi, Erromyzon Neely [D. A.], Conway [K. W.] & Mayden [R. L.] 2007:98, Figs. 1, 4a [Ichthyological Exploration of Freshwaters v. 18 (no. 2); ref. 29196] Xi Jiang, a tributary of the Zhu Jiang (Pearl River), near the village of Meicun, 24°03.508'N, 110°06.611'E, Jinxiu County, Guangxi, China, elevation 624 meters. Holotype: KIZ 200304423. Paratypes: KIZ 200304422 (1), 200304424 (1). Type catalog: Du et al. 2013:354 [ref. 32939]. •Valid as Erromyzon yangi Neely, Conway & Mayden 2007 -- (Yang et at. 2012:185 [ref. 32329], Yang et al. 2012:185 [ref. 32329], Zhang et al. 2016:158 [ref. 34477], Xiu & Yang 2017:895 [ref. 35089]). Current status: Valid as Erromyzon yangi Neely, Conway & Mayden 2007. Gastromyzontidae. Distribution: Guangxi, China. Habitat: freshwater.

yaoshanensis, Formosania Wu [H.-W.] 1939:128, Pl. 3 (fig. 7) [Sinensia v. 10 (nos 1-6); ref. 4805] Yao-shan, Li Kiang, southern China. Syntypes: 264-68 (5). •Synonym of Vanmanenia lineata (Fang 1935) -- (Zheng et al. 1989:244 [ref. 21202], Chen & Tang in Yue 2000:459 [ref. 25272], Kottelat 2012:72 [ref. 32367], Zhang et al. 2016:163 [ref. 34477]). Current status: Synonym of Vanmanenia lineata (Fang 1935). Gastromyzontidae. Habitat: freshwater.

yunnanensis, Paraprotomyzon Li [W.-X.], Lu [Z.-M.] & Mao [W.-N.] in Li, Mao, Lu, Sun & Lu 1998:4, Fig. 2 [Chinese Journal of Fisheries v. 11 (no. 1); ref. 28154] Huang-Ni He, Nanpanjiang system, Neigei, Luoping Co, 24°20'N,104°30'E, Yunnan Province, China. Holotype (unique): 9204001. Types are in Resevoir of Heilongtan Lunan and Fishery Administration, Qujing Region, Yunnan, China.. •Valid as Paraprotomyzon yunnanensis Li, Lu & Mao 1998 -- (Lu et al. 2005:203 [ref. 28156]). •Valid as ?Beaufortia yunnanensis (Li, Lu & Mao 1998) -- (Kottelat 2012:59 [ref. 32367]). Current status: Valid as Beaufortia yunnanensis (Li, Lu & Mao 1998). Gastromyzontidae. Distribution: Yunnan Province, China. Habitat: freshwater.

zebrinus, Gastromyzon Tan [H. H.] 2006:139, Pl. 15A, figs. 83-84 [The Borneo Suckers; ref. 28716] Bengkayang, about 60-70 kilometers from Sarawak border, Sambas basin, Kalimantan Barat, Borneo. Holotype: MZB 93950. Paratypes: MZB 9351 (9); ZRC 47073 (20). •Valid as Gastromyzon zebrinus Tan 2006 -- (Kottelat 2012:64 [ref. 32367], Kottelat 2013:194 [ref. 32989]). Current status: Valid as Gastromyzon zebrinus Tan 2006. Gastromyzontidae. Distribution: Upper Sambas River basin near Bengkayang, Kalimantan Barat, Borneo, Indonesia. Habitat: freshwater.

zebroidus, Gastromyzon pingi Fang [P.-W.] 1930:35, Pl. 2 (figs. 6-7 [not 1-2]) [Sinensia v. 1 (no. 3); ref. 1296] Tung-kwei, Lung-chow [Longzhou], southwestern Kwangsi, China. Holotype (unique): MMNHN 1544. •Valid as Beaufortia zebroidus (Fang 1930) -- (Zheng et al. 1989:257 [ref. 21202], Chen & Tang in Yue 2000:504 [ref. 25272], Tang & Chen 2000:7 [ref. 25445], Zhang et al. 2016:158 [ref. 34477]). •Valid as Beaufortia zebroida (Fang 1930) -- (Kottelat 2012:59 [ref. 32367]). Current status: Valid as Beaufortia zebroida (Fang 1930). Gastromyzontidae. Distribution: Xijiang River, China. Habitat: freshwater.

zebroidus, Hemimyzon Nichols [J. T.] 1925:1, Fig. 1 [American Museum Novitates No. 167; ref. 3177] Near Nanping, Fukien Province, China. Holotype: AMNH 8392. Paratypes: AMNH 10294 (26, 3 c&s), 10315 (29). •Synonym of Pseudogastromyzon fasciatus (Sauvage 1878) -- (Chen & Tang in Yue 2000:482 [ref. 25272], Kottelat 2012:69 [ref. 32367]). Current status: Synonym of Pseudogastromyzon fasciatus (Sauvage 1878). Gastromyzontidae. Habitat: freshwater.