Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species in the genus Sicyopterus: [ 55 ] records

aiensis, Sicyopterus Keith [P.], Watson [R. E.] & Marquet [G.] 2004:112, Figs. 1-3 [Cybium v. 28 (no. 2); ref. 27828] Creek Ai, Efate Island, Vanuatu. Holotype: MNHN 2003-268. Paratypes: BLIH, MNHN, ROM, SMF. •Valid as Sicyopterus aiensis Keith, Watson & Marquet 2004 -- (Keith et al. 2012:304 [ref. 31972], Keith et al. 2015:80 [ref. 34328], Kottelat 2013:427 [ref. 32989]). Current status: Valid as Sicyopterus aiensis Keith, Watson & Marquet 2004. Gobiidae: Sicydiinae. Distribution: Southwestern Pacific: Vanuatu Islands. Habitat: freshwater, brackish, marine.

albotaeniatum, Sicydium Günther [A.] 1877:183, Pl. 110 (fig. D) [Journal des Museum Godeffroy v. 4 (no. 13); ref. 14243] Hawaiian Islands. Syntypes: (2) whereabouts unknown. •Synonym of Sicyopterus stimpsoni (Gill 1860) -- (Mundy 2005:481 [ref. 28379], Keith et al. 2015:134 [ref. 34328]). Current status: Synonym of Sicyopterus stimpsoni (Gill 1860). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

brevis, Sicyopterus de Beaufort [L. F.] 1912:141 [Zoologischer Anzeiger v. 39 (no. 3); ref. 235] Upper course of Tubah River, western Ceram, Indonesia. Syntypes: ZMA 110981 (2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus brevis de Beaufort 1912 -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:382 [ref. 34328]). •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Maeda & Saeki 2018:255 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

caeruleus, Gobius Lacepède [B. G. E.] (ex Commerson) 1800:537, 560 [Histoire naturelle des poissons (Lacepède) v. 2; ref. 2709] Réunion, western Mascarenes, southwestern Indian Ocean. No types preserved. Based on manuscript description by Commerson (Philibert Commerson, 1727-1773, French explorer and naturalist). Bauchot et al. 1991:55 [ref. 19958] indicated that two spellings were used: coeruleus on p. 537 and caeruleus on p. 560 and selected coeruleus, but CAS copy has only caeruleus. No types at MNHN: Bauchot et al. 1991:55 [ref. 19958]. Also appeared in Sonnini 1803:194, 232 (vol. 7) [ref. 30473]. •Valid as Sicyopterus caeruleus (Lacepède 1800) -- (Maugé 1986:384 [ref. 6218], Fricke 1999:521 [ref. 24106], Buden et al. 2001:6 [ref. 25496]). •Possibly the same as Sicyopterus laticeps (Valenciennes 1837) -- (Sparks & Nelson 2004:4 [ref. 27700] with author as Commerson). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138], Keith et al. 2015:102 [ref. 34328], Larson 2022:179 [ref. 39971]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

calliochromus, Sicyopterus Keith [P.], Allen [G. R.] & Lord [C.] in Keith, Allen, Lord & Hadiaty 2012:314, Figs. 13-15 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Tirawiwa River, 132 km from mouth, 3°02.792'S, 136°22.858'E, Papua New Guinea, Indonesia. Holotype: MZB 20009. Paratypes: MNHN 2011-0042 (3), WAM P31447-004 (5). •Valid as Sicyopterus calliochromus Keith, Allen & Lord 2012 -- (Keith et al. 2015:244 [ref. 34172], Keith et al. 2015:84 [ref. 34328]). Current status: Valid as Sicyopterus calliochromus Keith, Allen & Lord 2012. Gobiidae: Sicydiinae. Distribution: Tirawiwa River, Papua New Guinea, Indonesia. Habitat: freshwater, brackish, marine.

caudimaculatus, Sicyopterus Maugé [A. L.], Marquet [G.] & Laboute [P.] 1992:219, Fig. 3 [Cybium v. 16 (no. 3); ref. 19910] Atuona River, Hiva Oa, Marquesas Islands, depth 1 meter. Holotype: MNHN 1989-1777. Paratypes: MNHN 1989-1778 (64), 1989-1779 (45), 1992-121 (31). •Valid as Sicyopterus caudimaculatus Maugé, Marquet & Laboute 1992. •Synonym of Sicyopterus marquesensis Fowler 1932 -- (Keith et al. 2015:114 [ref. 34328]). Current status: Synonym of Sicyopterus marquesensis Fowler 1932. Gobiidae: Sicydiinae. Distribution: Marquesas Islands (if valid). Habitat: freshwater, brackish, marine.

clarescens, Vitraria Jordan [D. S.] & Evermann [B. W.] 1903:205 [Bulletin of the U. S. Fish Commission v. 22 (1902); ref. 2450] Hilo, Hawaii Island, Hawaiian Islands. Holotype: USNM 50655. Paratypes: AMNH 2295 (1), ANSP 24223 (1), BPBM 1700 (1), MCZ 54391 (1, apparently lost), CAS-SU 7469 (1), USNM 126696 [ex USFC 2720] (1). Type catalog: Böhlke 1953:119 [ref. 12291], Böhlke 1984:105 [ref. 13621]. •Synonym of Sicyopterus stimpsoni (Gill 1860) -- (Greenfield et al. 1998:501 [ref. 23340], Mundy 2005:481 [ref. 28379], Keith et al. 2015:134 [ref. 34328]). Current status: Synonym of Sicyopterus stimpsoni (Gill 1860). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

crassus, Sicyopterus Herre [A. W. C. T.] 1927:307, Pl. 24 (fig. 2) [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Craan River, southern coast of Cotabato Province, Mindanao, Philippines. Syntypes: BSMP 10619 and 26974-77 (5) destroyed, seen by Koumans. Type catalog: Koumans 1940:193 [ref. 2676]. •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

cynocephalum, Sicydium Valenciennes [A.] in Cuvier & Valenciennes 1837:177 [Histoire naturelle des poissons v. 12; ref. 1006] Manado, Sulawesi, Indonesia. Syntypes: MNHN A-1454 (2). Type catalog: Bauchot et al. 1991:44 [ref. 19958]. •Valid as Sicyopterus cynocephalus (Valenciennes 1837) -- (Allen 1991:194 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Kottelat et al. 1993:152 [ref. 23448], Watson et al. 2000:24 [ref. 25138], Larson & Murdy 2001:3602 [ref. 26293], Keith et al. 2004:117 [ref. 27828], Larson & Pidgeon 2004:197 [ref. 28107], Keith et al. 2012:304 [ref. 31972], Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328], Miesen et al. 2016:94 [ref. 34492], Amick & Toko 2021:8 [ref. 38599], Keith et al. 2021:144 [ref. 38257], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Distribution: Western Pacific: Australia, Indonesia, Papua New Guinea, Philippines and Solomon Islands [anadromous]. Habitat: freshwater, brackish, marine.

elomionearum, Sicyopterus Lord [C.], Keith [P.], Causse [R.] & Amick [P.] 2020:131, Figs. 2-5 [Cybium v. 44 (no. 2); ref. 37663] Elnge Creek, New Britain, Papua New Guinea. Holotype: MNHN 2019-0107. Paratypes: MNHN. •Valid as Sicyopterus elomionearum Lord, Keith, Causse & Amick 2020 -- (Amick & Toko 2021:8 [ref. 38599]). Current status: Valid as Sicyopterus elomionearum Lord, Keith, Causse & Amick 2020. Gobiidae: Sicydiinae. Distribution: Western Pacific: western New Britain (Papua New Guinea). Habitat: freshwater, brackish, marine.

erythropterus, Sicyopterus Keith [P.], Allen [G. R.] & Lord [C.] in Keith, Allen, Lord & Hadiaty 2012:311, Figs. 10-12 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Tirawiwa River, 132 km from mouth, 3°02.792"S, 136°22.852'E, West Papua, Indonesia. Holotype: MZB 20008. Paratypes: MNHN 2011-0041 (3), WAM P31447.003 (5). •Valid as Sicyopterus erythropterus Keith, Allen & Lord 2012 -- (Keith et al. 2015:88 [ref. 34328], Lord et al. 2020:131 [ref. 37663]). Current status: Valid as Sicyopterus erythropterus Keith, Allen & Lord 2012. Gobiidae: Sicydiinae. Distribution: Tirawiwa River drainage, West Papua, Indonesia. Habitat: freshwater, brackish, marine.

eudentatus, Sicyopterus Parenti [L. R.] & Maciolek [J. A.] 1993:964, Figs. 10, 11B, 12B [Bulletin of Marine Science v. 53 (no. 3); ref. 21279] 4th tributary of Nanpil River, Ponape, eastern Caroline Islands. Holotype: CAS 67387. Paratypes: BPBM 35018 [ex CAS 67389] (1); CAS 67385-86 (2), 67390-94 (5), 67395 (4, 2 c&s), 67396 (1, c&s), 67397 (1, c&s); ROM 64671 [ex CAS 67395] (1); USNM 322473 [ex CAS 67388] (1). •Questionably a synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138]). •Questionably a synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). •Valid as Sicyopterus eudentatus Parenti & Maciolek 1993 -- (Buden et al. 2001:7 [ref. 25496], Larson & Murdy 2001:3602 [ref. 26293], Keith et al. 2015:90 [ref. 34328]). Current status: Valid as Sicyopterus eudentatus Parenti & Maciolek 1993. Gobiidae: Sicydiinae. Distribution: Western Pacific: Ponape. Habitat: freshwater, brackish, marine.

extraneus, Sicyopterus Herre [A. W. C. T.] 1927:311, Fig. 4 [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Cabalian, Leyte Island, Philippines. Syntypes: BSMP 10588 and 26884-87 (5) destroyed, seen by Koumans. Additional material: (3) BSMP (1) presumed destroyed. Type catalog: Koumans 1940:193 [ref. 2676]. •Valid as Sicyopterus extraneus Herre 1927 -- (authors). •Synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138], Keith et al. 2015:102 [ref. 34328]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

fasciatum, Sicydium Day [F.] 1874:31 [Journal of the Asiatic Society of Bengal v. 43 (pt 2, no 1); ref. 17365] Myanmar. Syntypes: ZSI 147 (lost). Type catalog: Whitehead & Talwar 1976:161 [ref. 23762]. Also appeared in Day 1876:299, Pl. 44 (fig. 7). Reasons for loss of ZSI type specimens during WWII see Chopra 1947:349-350 [ref. 33077]. •Valid as Sicyopterus fasciatus (Day 1874), but possibly conspecific with S. franouxi (Pellegrin 1935) -- (Stiassny & Harrison 2000:151 [ref. 25252]). •Valid as Sicyopterus fasciatus (Day 1874) -- (Maugé 1986:383 [ref. 6218], Sparks & Nelson 2004:4 [ref. 27700], Kottelat 2013:427 [ref. 32989], Keith et al. 2015:92 [ref. 34328]). Current status: Valid as Sicyopterus fasciatus (Day 1874). Gobiidae: Sicydiinae. Distribution: Myanmar. Habitat: freshwater, brackish, marine.

franouxi, Sicydium Pellegrin [J.] 1935:71 [Bulletin de la Société Zoologique de France v. 60 (no. 1); ref. 15667] Ankondro River near to Tsimelahy, region of Ranopitso (Fort-Dauphin), southeastern Madagascar. Holotype (unique): MNHN 1935-0017. Type catalog: Bauchot et al. 1991:44 [ref. 19958], Fricke et al. 2018:340 [ref. 35805]. •Questionably a synonym of Sicyopterus fasciatus (Day 1874) -- (Maugé 1986:383 [ref. 6218]). •Valid as Sicyopterus franouxi (Pellegrin 1935), but possibly a synonym of Sicyopterus fasciatus (Day 1874) -- (Stiassny & Harrison 2000:151 [ref. 25252]). •Valid as Sicyopterus franouxi (Pellegrin 1935) -- (Sparks & Nelson 2004:4 [ref. 27700], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:94 [ref. 34328], Fricke et al. 2018:340 [ref. 35805], Larson 2022:178 [ref. 39971]). Current status: Valid as Sicyopterus franouxi (Pellegrin 1935). Gobiidae: Sicydiinae. Distribution: Northwestern and eastern Madagascar. Habitat: freshwater, brackish, marine.

fuliag, Sicyopterus Herre [A. W. C. T.] 1927:309, Fig. 3 [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Pinacanawan River, at Lamug, a barrio in the mountains east of Tuguegarao, Cagayan Province, Luzon Island, Philippines. Holotype: BSMP 10619 (destroyed, seen by Koumans). Paratypes: BSMP 26874-77 (6) destroyed, seen by Koumans. Type catalog: Koumans 1940:193 [ref. 2676]. •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

garra, Sicyopterus Hora [S. L.] in Annandale & Hora 1925:35, Pl. 2 (figs. 2-5) [Records of the Indian Museum (Calcutta) v. 27 (pt 2); ref. 15527] Birchgunge [Brichgunj], South Andaman Island, Andaman Islands. Lectotype: ZSI F10831/1 [22.8 mm]. Paralectotype: ZSI F10831/1 (1) Birchgunge [ZSI (6) base of Mount Harriet, lost]. Type catalog: Menon & Yazdani 1968:154 [ref. 20743]. See Das 2003:374 [ref. 27706] with authorship as Annandale & Hora. Lectotype selected by Praveenraj et al. 2022:9 [ref. 39577]. •Synonym of Sicyopterus microcephalus (Bleeker 1855) -- (Talwar & Jhingran 1991:970 [ref. 20764], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:116 [ref. 34328] with question). •Valid as Sicyopterus garra Hora 1925 -- (Praveenraj et al. 2022:[2] [ref. 39577]). Current status: Valid as Sicyopterus garra Hora 1925. Gobiidae: Sicydiinae. Distribution: Northeastern Indian Ocean: Andaman Islands (India). Habitat: freshwater, brackish, marine.

griseum, Sicydium Day [F.] 1877:140 [The Journal of the Linnean Society of London. Zoology v. 13 (no. 67); ref. 14240] South Canara, India. Syntypes and/or Day specimens: (2) AMS B.8254 (1, syntype), ZSI 2474 (1). Type catalog: Whitehead & Talwar 1976:161 [ref. 23762], Ferraris et al. 2000:297 [ref. 25110]. •Valid as Sicyopterus griseus (Day 1877) -- (Pethiyagoda 1991:251 [ref. 20075], Talwar & Jhingran 1991:969 [ref. 20764], Biju et al. 1998:351 [ref. 24982], Menon 1999:295 [ref. 24904], Bijukumar & Sushama 2000:187 [ref. 25703], Raju Thomas et al. 2002:51 [ref. 26359], Manilo & Bogorodsky 2003:S118 [ref. 27377], Keith et al. 2015:96 [ref. 34328], Praveenraj et al. 2022:[9] [ref. 39577]). Current status: Valid as Sicyopterus griseus (Day 1877). Gobiidae: Sicydiinae. Distribution: Indian Ocean: India and Sri Lanka. Habitat: freshwater, brackish, marine.

gymnauchen, Sicydium Bleeker [P.] 1858:11 [Acta Societatis Regiae Scientiarum Indo-Neêrlandicae v. 3 (art. 11); ref. 361] Manado, Sulawesi, Indonesia. Syntypes: (over 300) RMNH 6191 (many of 1946 specimens), ?RMNH 6169 (?). •Valid as Sicyopterus gymnauchen (Bleeker 1858) -- (Talwar & Jhingran 1991:969 [ref. 20764], Parenti & Maciolek 1993:963 [ref. 21279]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138]). •Synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). Current status: Synonym of Sicyopterus macrostetholepis (Bleeker 1853). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

hageni, Sicyopterus Popta [C. M. L.] 1921:211 [Zoologische Mededeelingen (Leiden) v. 6 (art. 15); ref. 15325] Sunda Islands, Indonesia. Syntypes: SMF 6621 (1), 6622-37 (16), 6638 (1). •Valid as Sicyopterus hageni Popta 1921 -- (Allen 1991:194 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Watson et al. 2000:30 [ref. 25138], Larson & Murdy 2001:3602 [ref. 26293], Larson & Pidgeon 2004:197 [ref. 28107], Keith et al. 2012:301 [ref. 31972], Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus microcephalus (Bleeker 1855) -- (Keith et al. 2015:116 [ref. 34328]). Current status: Synonym of Sicyopterus microcephalus (Bleeker 1855). Gobiidae: Sicydiinae. Distribution: Sunda Islands, Indonesia (if valid). Habitat: freshwater, brackish, marine.

halei, Sicydium Day [F.] 1888:794 [The fishes of India Suppl.; ref. 1082] Sri Lanka. Holotype (unique): ? Colombo Mus., whereabouts unknown. Type catalog: Whitehead & Talwar 1976:161 [ref. 23762]. Type information: Pethiyagoda 1991:336 [ref. 20075]. •Valid as Sicyopterus halei (Day 1888) -- (Pethiyagoda 1991:253 [ref. 20075]). •Synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138], Keith et al. 2015:102 [ref. 34328]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

hasseltii, Gobius Bleeker [P.] 1851:250 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 1 (no. 3); ref. 16890] Tjisekat, Bantam Province [western Java Province], Java, Indonesia. Holotype (unique): whereabouts unknown. Type information: Roberts 1993:43 [ref. 21799]. •In Sicyopterus, status uncertain -- (Roberts 1993:43 [ref. 21799]). •Synonym of Sicyopterus cynocephelus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Distribution: Indo-West Pacific. Habitat: freshwater, brackish, marine.

hicklingi, Rewa Whitley [G. P.] 1950:245 [Records of the Australian Museum v. 22 (no. 3); ref. 4712] Rewa River, Fiji Islands. Holotype: AMS IB.1949 (with paratypes, not distinguishable). Paratypes: AMS IB.1950-51 (7). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

inana, Bryanina Fowler [H. W.] 1932:10, Fig. 5 [Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History v. 9 (no. 25); ref. 1413] Vai Tuoru River, Papenoo Valley, Tahiti, Society Islands, elevation 350 feet. Holotype: BPBM 3494. Paratypes: ANSP 54239 (1); BPBM 5302-03 (4, 1); USNM 109379 (1). Type catalog: Koumans 1940:157 [ref. 2676], Böhlke 1984:107 [ref. 13621]. •Synonym of Sicyopterus gymnauchen (Bleeker 1858). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138]). •Synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). Current status: Synonym of Sicyopterus macrostetholepis (Bleeker 1853). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

japonicum, Sicydium Tanaka [S.] 1909:22 [Journal of the College of Science. Imperial University, Tokyo v. 27 (art. 8); ref. 4322] Tosa, Shikoku Island, Kochi Prefecture, Japan. Holotype: ZUMT 2138. Paratypes: ZUMT 2139 (1). •Valid as Sicydium japonicum Tanaka 1909 -- (Okada 1961:688 [ref. 6363]). •Valid as Sicyopterus japonicus (Tanaka 1909) -- (Lindberg & Krasyukova 1975:411 [ref. 7348], Akihito in Masuda et al. 1984:285 [ref. 6441], Kawanabe & Mizuno 1989:638 [ref. 25598], Takahashi 1996:2 [ref. 24363], Kim 1997:446 [ref. 24032], Sato et al. 1998:41 [ref. 24972], Mizuno et al. 1999:12 [ref. 25311], Watson et al. 2000:24 [ref. 25138], Nakabo 2000:1159 [ref. 25182], Matsuura et al. 2000:240 [ref. 26000], Larson & Murdy 2001:3602 [ref. 26293], Sakai et al. 2001:116 [ref. 25693], Kim & Park 2002:370 [ref. 25913], Nakabo 2002:1159 [ref. 26193], Choi et al. 2003:400, 665 [ref. 26218], Yonezawa et al. 2010:257 [ref. 30902], Keith et al. 2015:98 [ref. 34328], Zhang et al. 2016:207 [ref. 34477] as japonica, Maeda & Saeki 2018:260 [ref. 36339], Lord et al. 2020:131 [ref. 37663]). Current status: Valid as Sicyopterus japonicus (Tanaka 1909). Gobiidae: Sicydiinae. Distribution: Japan and Taiwan, western Pacific. Habitat: freshwater, brackish, marine.

jonklaasi, Gobius Axelrod [H. R.] 1972:F-300.10 (4 pp.), Color Figs. [Exotic tropical fishes. Looseleaf edition.; ref. 22712] Mountain streams, Sri Lanka. Not the same as Sicyopus jonklaasi described as new by Klausewitz & Henrich 1986. •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Keith et al. 2019:166 [ref. 36794]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

lacrymosus, Sicyopterus Herre [A. W. C. T.] 1927:303, Fig. 1, Pl. 24 (fig. 1) [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] Abra Province, Philippines. Syntypes: BSMP 12995 and 26205-12 (9) Ba Kalaba, BSMP 10618 (1) Titunod R.; all types presumed destroyed, but seen by Koumans. Type catalog: Koumans 1940:193 [ref. 2676]. •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Kottelat 2013:428 [ref. 32989], Keith et al. 2015:110 [ref. 34328], Maeda & Saeki 2018:255 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

lagocephalus, Gobius Pallas [P. S.] 1770:14, Pl. 2 (figs. 6-7) [Spicilegia Zoologica v. 1 (fasc. 8); ref. 12293] Ravine St. Gilles, Réunion, western Mascarenes, southwestern Indian Ocean. Neotype: SMF 28571. Neotype designation by Fricke 1999:523 [ref. 24106] is invalid; see Fricke 2000:639 [ref. 24537]. Also neotype designation [SMF 28571] by "G. Marquet" in Watson et al. 2000:13 [ref. 25138] is invalid, not meeting the conditions of Article 75.3 of the Code. See discussion in Sparks & Nelson 2004:17 [ref. 27700]. Neotype validly selected by Kottelat 2007:693 [see ref. 30606]. Name placed on Official List in Opinion 2239. •Nomen dubium, incertae sedis in subfamily Sicydiinae -- (Sparks & Nelson 2004:17 [ref. 27700]). •Valid as Sicyopterus lagocephalus (Pallas 1770) -- (Maugé 1986:383 [ref. 6218], Balon & Bruton 1994:25 [ref. 22317], Fricke 1999:523 [ref. 24106], Keith et al. 1999:116 [ref. 24548], Watson et al. 2000:13 [ref. 25138], Nakabo 2000:1159 [ref. 25182], Laboute & Grandperrin 2000:62 [ref. 25191], Stiassny & Harrison 2000:152 [ref. 25252], Sasaki et al. 2001:2 [ref. 25228], Watson et al. 2001:42 [ref. 25349], Buden et al. 2001:6 [ref. 25496], Sakai et al. 2001:118 [ref. 25693], Allen et al. 2002:274 [ref. 25930], Keith et al. 2002:126 [ref. 31473], Nakabo 2002:1159 [ref. 26193], Keith et al. 2002:188 [ref. 26363], Myers & Donaldson 2003:642 [ref. 27495] dated 1774, Keith et al. 2004:117 [ref. 27828], Hoese & Larson 2006:1683 [ref. 29097], Fricke et al. 2009:103 [ref. 30213], Yonezawa et al. 2010:257 [ref. 30902], Keith et al. 2012:303 [ref. 31972], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:102 [ref. 34328], Koeda et al. 2016:94 [ref. 35333], Maeda & Saeki 2018:260 [ref. 36339], Arndt & Fricke 2019:17 [ref. 36883], Akaike et al. 2021:30 [ref. 38809], Amick & Toko 2021:8 [ref. 38599], Keith et al. 2021:146 [ref. 38257], Larson 2022:179 [ref. 39971], Praveenraj et al. 2022:[9] [ref. 39577], Donaldson et al. 2023:[2] [ref. 40378], Ito & Shono 2023:26 [ref. 39898], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Distribution: Indo-West Pacific: Comoros, Réunion, Mauritius (Mascarenes) east to French Polynesia, north to Kochi Prefecture (Japan), south to New Caledonia. Habitat: freshwater, brackish, marine.

laticeps, Sicydium Valenciennes [A.] in Cuvier & Valenciennes 1837:177 [Histoire naturelle des poissons v. 12; ref. 1006] Réunion, western Mascarenes, southwestern Indian Ocean. Syntypes: MNHN 0000-0841 (1), 0000-0918 (1). Type catalog: Bauchot et al. 1991:44 [ref. 19958]. •Valid as Sicyopterus laticeps (Valenciennes 1837) -- (Sparks & Nelson 2004:17 [ref. 27700], Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Maugé 1986:383 [ref. 6218], Fricke 1999:522 [ref. 24106], Keith et al. 2015:102 [ref. 34328], Larson 2022:179 [ref. 39971]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Distribution: Réunion Island and Mauritius (Mascarenes); apparently not Madagascar (if valid). Habitat: freshwater, brackish, marine.

lengguru, Sicyopterus Keith [P.], Lord [C.] & Hadiaty [R. K.] in Keith, Allen, Lord & Hadiaty 2012:309, Figs. 7-9 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Bichain River, 3°42'18"S, 134°04'41.4"E, tributary of Lengguru (Tombona) stream, Papua New Guinea, Indonesia. Holotype: MZB 20000. Paratypes: MNHN 2011-0043 (1). •Valid as Sicyopterus lengguru Keith, Lord & Hadiaty 2012. Current status: Valid as Sicyopterus lengguru Keith, Lord & Hadiaty 2012. Gobiidae: Sicydiinae. Distribution: Bichain River, Papua New Guinea, Indonesia. Habitat: freshwater, brackish, marine.

lienardi, Gobius Bleeker [P.] 1874:77 [Poissons de Madagascar et de l'Ile la Réunion Part 4; ref. 443] Mauritius, Mascarenes, southwestern Indian Ocean. No types known. Based on 'Gobie bleu' of Liénard 1839:38 [ref. 17536] and Liénard 1840:297 [ref. 30337]; description quoted from Liénard. For date of publication (as laterst in Dec. 1974), see Kottelat 2013 [ref. 32740]. •Synonym of Sicyopterus caeruleus (Lacepède 1800) -- (Maugé 1986:384 [ref. 6218] with question, Fricke 1999:521 [ref. 24106]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Larson 2022:179 [ref. 39971]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

lividus, Sicyopterus Parenti [L. R.] & Maciolek [J. A.] 1993:962, Figs. 5D, 9, 11A, 12A [Bulletin of Marine Science v. 53 (no. 3); ref. 21279] 4th tributary of Nanpil River, Ponape, eastern Caroline Islands. Holotype: CAS 67447. Paratypes: BPBM 35019 [ex CAS 67454] (4); CAS 67478-9 (1, 1), 67451 (1), 67453-4 (8, 8), 67457-8 (21, 3), 67480-90 (1 ea.), 67491 (15, 2 c&s), 67492-500 (9, c&s), 77367 [ex CAS 67447] (1); ROM [ex CAS 67457] (4); USNM 322470 [ex CAS 67453] (4). •Valid as Sicyopterus lividus Parenti & Maciolek 1993 -- (Buden et al. 2001:6 [ref. 25496], Larson & Murdy 2001:3602 [ref. 26293], Keith et al. 2015:108 [ref. 34328]). Current status: Valid as Sicyopterus lividus Parenti & Maciolek 1993. Gobiidae: Sicydiinae. Distribution: Micronesia, western Pacific. Habitat: freshwater, brackish, marine.

longifilis, Sicyopterus de Beaufort [L. F.] 1912:140 [Zoologischer Anzeiger v. 39 (no. 3); ref. 235] Upper course of Tubah River, western Ceram, Indonesia. Syntypes: ZMA 112562 (orig. 3, now 2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus longifilis de Beaufort 1912 -- (Allen 1991:195 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Kottelat et al. 1993:152 [ref. 23448], Larson & Murdy 2001:3602 [ref. 26293], Keith et al. 2012:304 [ref. 31972], Kottelat 2013:428 [ref. 32989], Fricke et al. 2014:172 [ref. 33932], Keith et al. 2015:244 [ref. 34172], Miesen et al. 2016:94 [ref. 34492], Maeda & Saeki 2018:255 [ref. 36339], Fricke et al. 2019:288 [ref. 36673], Amick & Toko 2021:8 [ref. 38599], Keith et al. 2021:148 [ref. 38257], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus longifilis de Beaufort 1912. Gobiidae: Sicydiinae. Distribution: Western Pacific: southern Japan, Taiwan, Philippines (Luzon, Panay, Negros, Mindanao), Indonesia (Seram, Babar, Ambon), Solomon Islands and Papua New Guinea [anadromous]. Habitat: freshwater, brackish, marine.

macrostetholepis, Sicydium Bleeker [P.] 1853:271 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 4 (no. 2); ref. 12580] Western Sumatra, Indonesia. Holotype (unique): Probably in RMNH 6188. •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138]). •Valid as Sicyopterus macrostetholepis (Bleeker 1853) -- (Akihito in Masuda et al. 1984:286 [ref. 6441], Kawanabe & Mizuno 1989:637 [ref. 25598], Kottelat et al. 1993:153 [ref. 23448], Larson & Murdy 2001:3603 [ref. 26293], Larson et al. 2008:151 [ref. 29532], Keith et al. 2012:304 [ref. 31972], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:112 [ref. 34328], Miesen et al. 2016:95 [ref. 34492], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus macrostetholepis (Bleeker 1853). Gobiidae: Sicydiinae. Distribution: Western Pacific: Indonesia and the Philippines [anadromous]. Habitat: freshwater, brackish, marine.

maritimus, Sicyopterus Fourmanoir [P.] 1955:205, Not Fig. 1 [Mémoires de l'Institut Scientifique de Madagascar. Série A, Biologie Animale v. 9; ref. 12271] Domoni, Anjouan Island, Comoro Islands. No types known. Type catalog: Bauchot et al. 1991:61 [ref. 19958] who state Fourmanoir's Fig. 1 is not this species. •Synonym of Istigobius ornatus (Rüppell 1830) -- (Maugé 1986:374 [ref. 6218]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Larson 2022:179 [ref. 39971] with question). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Gobiinae. Habitat: brackish, marine.

marquesensis, Sicyopterus Fowler [H. W.] 1932:7, Fig. 3 [Occasional Papers of the Bernice Pauahi Bishop Museum of Polynesian Ethnology and Natural History v. 9 (no. 25); ref. 1413] Tohetaivau, Omoa [Oomoa] Valley, Fatuhiva, Marquesas Islands, elevation 1700 feet. Holotype: BPBM 3493. Paratypes: (should be 12) ANSP 54168-73 (6); BPBM 5300 (2), 10076 (4); USNM 109370 (2). Type catalog: Koumans 1940:157 [ref. 2676]. •Valid as Sicyopterus marquesensis Fowler 1932 -- (Maugé et al. 1992:219 [ref. 19910], Marquet et al. 1999:43 [ref. 23934], Watson et al. 2000:24 [ref. 25138], Larson & Murdy 2001:3603 [ref. 26293], Keith et al. 2002:128 [ref. 31473], Keith et al. 2010:327 [ref. 30747], Keith et al. 2015:114 [ref. 34328]). Current status: Valid as Sicyopterus marquesensis Fowler 1932. Gobiidae: Sicydiinae. Distribution: Marquesas Islands, western Pacific. Habitat: freshwater, brackish, marine.

microcephalus, Sicydium Bleeker [P.] 1855:437 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 7 (no. 3); ref. 16941] Tjibiliong, Banten Province, Java, Indonesia. Syntypes: RMNH 4768 (2 of 4). •Valid as Sicyopterus microcephalus (Bleeker 1855) -- (Talwar & Jhingran 1991:970 [ref. 20764], Kottelat et al. 1993:153 [ref. 23448], Larson & Murdy 2001:3603 [ref. 26293], Keith et al. 2012:301 [ref. 31972], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:116 [ref. 34328], Miesen et al. 2016:95 [ref. 34492], Praveenraj et al. 2022:[9] [ref. 39577]). Current status: Valid as Sicyopterus microcephalus (Bleeker 1855). Gobiidae: Sicydiinae. Distribution: Eastern Indian Ocean and western Pacific [anadromous]: Sunda Islands (Indonesia). Habitat: freshwater, brackish, marine.

micrurus, Sicydium Bleeker [P.] 1854:341 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 5 (no. 3); ref. 5117] Ambon Island, Molucca Islands, Indonesia. Holotype (unique): RMNH 4666. Possibly published in Dec. 1853. •Valid as Sicyopterus micrurus (Bleeker 1854) -- (Parenti & Maciolek 1993:963 [ref. 21279], Kottelat et al. 1993:153 [ref. 23448], Watson et al. 2000:24 [ref. 25138], Larson & Murdy 2001:3603 [ref. 26293], Keith et al. 2004:117 [ref. 27828], Larson & Pidgeon 2004:197 [ref. 28107], Keith et al. 2012:311 [ref. 31972], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:119 [ref. 34328], Miesen et al. 2016:95 [ref. 34492], Jamandre 2023:169 [ref. 40455]). Current status: Valid as Sicyopterus micrurus (Bleeker 1854). Gobiidae: Sicydiinae. Distribution: Eastern Indian Oceam, western Pacific: Timor and Maluku (Indonesia). Habitat: freshwater, brackish, marine.

nigrescens, Sicydium Günther [A.] 1880:60, Pl. 26 (fig. C) [Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876 v. 1 (pt 6); ref. 2011] Honolulu, Hawaii and Hawaii. Syntypes: BMNH 1879.5.14.540-543 (4), 1879.5.14.544 (1); NMI block reg. no. 114.1899 (1, poor condition). Probable syntypes: BMNH 1912.11.28.10-14 (12, very poor condition). Type catalog: Wheeler & O'Riordan 1969:98 [ref. 20752]. •Synonym of Sicyopterus stimpsoni (Gill 1860) -- (Mundy 2005:481 [ref. 28379], Keith et al. 2015:134 [ref. 34328]). Current status: Synonym of Sicyopterus stimpsoni (Gill 1860). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

ocellaris, Sicyopterus Keith [P.], Allen [G. R.] & Lord [C.] in Keith, Allen, Lord & Hadiaty 2012:304, Figs. 4-6 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Nuru River, about 34 km southwest of Madang on Ruma Highway, 5°26'N, 145°34'E, Papua New Guinea. Holotype: WAM P28190-011. Paratypes: MNHN 2011-0040 (3), WAM-P28198-006 (6). •Valid as Sicyopterus ocellaris Keith, Allen & Lord 2012 -- (Fricke et al. 2014:172 [ref. 33932], Keith et al. 2015:121 [ref. 34328]). Current status: Valid as Sicyopterus ocellaris Keith, Allen & Lord 2012. Gobiidae: Sicydiinae. Distribution: Papua New Guinea. Habitat: freshwater, brackish, marine.

ouwensi, Sicyopterus Weber [M.] 1913:602 [Süsswasserfische aus Niederländisch Süd- und Nord-Neu-Guinea v. 9 (livr. 4); ref. 4603] Humbolt Bay and Mbai River, northern New Guinea. Syntypes: ZMA 112564-65 (1, 2). Type catalog: Nijssen et al. 1982:104 [ref. 19236]. •Valid as Sicyopterus ouwensi Weber 1913 -- (Allen 1991:195 [ref. 21090], Parenti & Maciolek 1993:963 [ref. 21279], Watson et al. 2000:24 [ref. 25138], Larson & Murdy 2001:3603 [ref. 26293]\, Keith et al. 2012:304 [ref. 31972]). •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Kottelat 2013:427 [ref. 32989], Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Distribution: New Guinea (if valid). Habitat: freshwater, brackish, marine.

panayensis, Sicyopterus Herre [A. W. C. T.] 1927:313, Fig. 5 [Monographs, Bureau of Science Manila Monogr. 23; ref. 2104] San Jose, Antique Province, Panay, Philippines. Lectotype: BSM 13137 (seen by Koumans). Paralectotypes: BSMP 26920-24 (5) destroyed, seen by Koumans. Type catalog: Koumans 1940:193-194 [ref. 2676]. Lectotype designated by Koumans 1940:193. •Valid as Sicyopterus panayensis Herre 1927 -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus longifilis de Beaufort 1912 -- (Keith et al. 2015:110 [ref. 34328], Maeda & Saeki 2018:256 [ref. 36339]). Current status: Synonym of Sicyopterus longifilis de Beaufort 1912. Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

parvei, Sycidium Bleeker [P.] 1853:426 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 4 (no. 2); ref. 16910] Garut, Preanger Province, western Java, Indonesia. Syntypes: RMNH 4504 (3). Original genus should have been Sicydium. •Valid as Sicyopterus parvei (Bleeker 1853) -- (Kottelat et al. 1993:153 [ref. 23448], Larson & Murdy 2001:3603 [ref. 26293], Keith et al. 2004:117 [ref. 27828], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:122 [ref. 34328], Lord et al. 2020:131 [ref. 37663]). Current status: Valid as Sicyopterus parvei (Bleeker 1853). Gobiidae: Sicydiinae. Distribution: Java, Lombok and Bali, Indonesia. Habitat: freshwater, brackish, marine.

pugnans, Sicydium Ogilvie-Grant [W. R.] 1884:160, Pl. 11 (fig. 3), Pl. 12 (fig. 7) [Proceedings of the Zoological Society of London 1884 (pt 2) (art. 1) (for 4 Mar. 1884); ref. 18151] Savai'i Island, Samoa. Syntypes: BMNH 1874.7.13.34 (4), .38 (8), .39 (9) and .40 (200+ juveniles). •Valid as Sicyopterus pugnans (Ogilvie-Grant 1884) -- (Maugé et al. 1992:223 [ref. 19910], Parenti & Maciolek 1993:963 [ref. 21279], Watson 1999:89 [ref. 23674], Marquet et al. 1999:43 [ref. 23934], Larson & Murdy 2001:3603 [ref. 26293], Keith et al. 2002:130 [ref. 31473], Keith et al. 2015:124 [ref. 34328], Praveenraj et al. 2022:[9] [ref. 39577]). Current status: Valid as Sicyopterus pugnans (Ogilvie-Grant 1884). Gobiidae: Sicydiinae. Distribution: South Pacific: American Samoa and French Polynesia. Habitat: freshwater, brackish, marine.

punctissimus, Sicyopterus Sparks [J. S.] & Nelson [D. W.] 2004:10, Figs. 5B, 6C-D, 7 [American Museum Novitates No. 3440; ref. 27700] Large unnamed cascading tributary of Ankavanana River, 15°18'S, 50°16'E, Masoala Peninsula, Madagascar. Holotype: UMMZ 242048. Paratypes: AMNH 215498 (3), 226656 (1); MNHN 1968-174 (2); UMMZ 234877 (1), 234879 (2), 234881 (1). Type catalog: Fricke et al. 2018:340 [ref. 35805]. •Valid as Sicyopterus punctissimus Sparks & Nelson 2004 -- (Keith et al. 2015:126 [ref. 34328], Fricke et al. 2018:340 [ref. 35805], Larson 2022:179 [ref. 39971]). Current status: Valid as Sicyopterus punctissimus Sparks & Nelson 2004. Gobiidae: Sicydiinae. Distribution: Northeastern Madagascar. Habitat: freshwater, brackish, marine.

rapa, Sicyopterus Parenti [L. R.] & Maciolek [J. A.] 1996:662, Figs. 2-3 [Bulletin of Marine Science v. 58 (no. 3); ref. 22291] Shallow water in Pania River at head of Haurei Bay, Rapa, French Polynesia. Holotype: BPBM 12923. Paratypes: AMNH 19941 (6), BPBM 35782 [ex BPBM 12923] (6), CAS 81599 [ex BPBM 12923] (2), MNHN 1994-0501 to 0502 [ex BPBM 12923] (1, 1), USNM 330077 [ex BPBM 12923] (1, allotype). •Valid as Sicyopterus rapa Parenti & Maciolek 1996 -- (Keith et al. 2002:132 [ref. 31473], Keith et al. 2010:327 [ref. 30747], Keith et al. 2015:128 [ref. 34328]). Current status: Valid as Sicyopterus rapa Parenti & Maciolek 1996. Gobiidae: Sicydiinae. Distribution: French Polynesia: Rapa. Habitat: freshwater, brackish, marine.

sarasini, Sicyopterus Weber [M.] & de Beaufort [L. F.] 1915:40 [Les poissons d'eau douce de la Nouvelle-Calédonie v. 2 (no. 2); ref. 19260] Tiouaca River and Douencheur River, New Caledonia. Syntypes: NMBA 3001 (1), ZMA 108025 (1). Type catalog: Nijssen et al. 1982:104 [ref. 19236], Kottelat & Sutter 1988:57 [ref. 13796]. Lectotype designation [NMBA 3001] in Watson et al. 2000:25 [ref. 25138] does not conform to the International Code of Zoological Nomencalture. •Valid as Sicyopterus sarasini Weber & de Beaufort 1915 -- (Marquet & Mary 1999:36 [ref. 23933], Watson et al. 2000:25 [ref. 25138], Laboute & Grandperrin 2000:62 [ref. 25191], Watson et al. 2001:42 [ref. 25349], Keith et al. 2002:188 [ref. 26363], Keith et al. 2004:117 [ref. 27828], Keith et al. 2012:311 [ref. 31972], Keith et al. 2015:130 [ref. 34328], Lord et al. 2020:131 [ref. 37663]). Current status: Valid as Sicyopterus sarasini Weber & de Beaufort 1915. Gobiidae: Sicydiinae. Distribution: New Caledonia. Habitat: freshwater, brackish, marine.

squamosissimus, Sicyopterus Keith [P.], Lord [C.], Busson [F.], Sauri [S.], Hubert [N.] & Hadiaty [R. K.] 2015:244, Figs. 1-3 [Cybium v. 39 (no. 4); ref. 34172] Kabupaten Sukabumi, Citiis, West Java, Indonesia. Holotype: MZB 22716. Paratypes: MNHN, MZB. •Valid as Sicyopterus squamosissimus Keith, Lord, Busson, Sauri, Hubert & Hadiaty 2015. Current status: Valid as Sicyopterus squamosissimus Keith, Lord, Busson, Sauri, Hubert & Hadiaty 2015. Gobiidae: Sicydiinae. Distribution: Sumatra and Java, Indonesia. Habitat: freshwater, brackish, marine.

stimpsoni, Sicydium Gill [T. N.] 1860:101 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 12; ref. 1764] Freshwater streams, Hilo, Hawaii, Hawaiian Islands. Syntypes: BMNH 1879.5.14.540-543 (now 2), 1879.5.14.544 (1), ?1912.11.28.10-14 (now 1). •Valid as Sicyopterus stimpsoni (Gill 1860) -- (Zink et al. 1996:331 [ref. 22396], Greenfield et al. 1998:501 [ref. 23340], Nishimoto & Fitzsimons 1999:815 [ref. 23947], McDowall 2003:705 [ref. 26832], Greenfield & Randall 2004:498 [ref. 28175], Benbow et al. 2004:129 [ref. 28266], Mundy 2005:481 [ref. 28379], Keith et al. 2015:134 [ref. 34328]). Current status: Valid as Sicyopterus stimpsoni (Gill 1860). Gobiidae: Sicydiinae. Distribution: Hawaiian Islands. Habitat: freshwater, brackish, marine.

stiphodonoides, Sicyopterus Keith [P.], Allen [G. R.] & Lord [C.] in Keith, Allen, Lord & Hadiaty 2012:301, Figs. 1-3 [Cybium v. 35 (no. 4) (for 2011); ref. 31972] Nantuke Creek, Papua Province, Indonesia, 2°27.103'S, 140°29.174'E. Holotype: MZB 20007. Paratypes: MNHN 2011-0048 (1), 2011-0049 (3); WAM P31746.004 (1). •Valid as Sicyopterus stiphodonoides Keith, Allen & Lord 2012 -- (Keith et al. 2015:137 [ref. 34328], Amick & Toko 2021:8 [ref. 38599], Keith et al. 2021:150 [ref. 38257], Praveenraj et al. 2022:[9] [ref. 39577]). Current status: Valid as Sicyopterus stiphodonoides Keith, Allen & Lord 2012. Gobiidae: Sicydiinae. Distribution: Western Pacific: West Papua (Indonesia), New Britain (Papua New Guinea) and Solomon Islands. Habitat: freshwater, brackish, marine.

taeniurum, Sicydium Günther [A.] 1877:183, Pl. 112 (fig. C) [Journal des Museum Godeffroy v. 4 (no. 13); ref. 14243] Fiji Islands; Vanuatu. Syntypes: ?BMNH 1881.10.18.5 (1) Fiji, Viti Levu; ?NMV A 5284 [ex Museum Godeffroy] (3) Fiji, Viti Levu. •Valid as Sicyopterus taeniurus (Günther 1877) -- (Maugé et al. 1992:221 [ref. 19910], Watson 1999:89 [ref. 23674], Marquet & Mary 1999:36 [ref. 23933], Marquet et al. 1999:43 [ref. 23934], Larson & Murdy 2001:3603 [ref. 26293]). •Synonym of Sicyopterus macrosetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138], Keith et al. 2015:102 [ref. 34328]). Current status: Synonym of Sicyopterus lagocephalus (Pallas 1770). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

tauae, Sicyopterus Jordan [D. S.] & Seale [A.] 1906:410, Fig. 96 [Bulletin of the Bureau of Fisheries v. 25 (for 1905); ref. 2497] Vaisigano River, Apia, Upolu Island, Samoa. Holotype (unique): USNM 51787 [not 51786]. Type catalog: Koumans 1940:126 [ref. 2676]. •Questionably a synonym of Sicyopterus lagocephalus (Pallas 1770) -- (Watson et al. 2000:13 [ref. 25138]). •Questionably a synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat 2013:428 [ref. 32989]). Current status: Synonym of Sicyopterus macrostetholepis (Bleeker 1853). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

wichmanni, Sicydium Weber [M.] 1894:413 [Zoologische Ergebnisse einer Reise in Niederländisch Ost-Indien v. 3 (no. 2); ref. 14569] River near Kupang, Timor Island, southern Malay Archipelago. Lectotype: ZMA 111274. Paralectotypes: (13) ZMA 111275-77 (6, 5, 2). Type catalog: Nijssen et al. 1982:103 [ref. 19236]. Lectotype selected by Koumans 1953:226 [ref. 2678]. •Valid as Sicyopterus wichmanni (Weber 1894) -- (Parenti & Maciolek 1993:963 [ref. 21279], Larson & Murdy 2001:3603 [ref. 26293] as de Beaufort 1912, Larson & Pidgeon 2004:197 [ref. 28107], Keith et al. 2012:301 [ref. 31972], Kottelat 2013:429 [ref. 32989]). •Synonym of Sicyopterus microcephalus (Bleeker 1855) -- (Keith et al. 2015:116 [ref. 34328]). Current status: Synonym of Sicyopterus microcephalus (Bleeker 1855). Gobiidae: Sicydiinae. Distribution: Malay Archipelago (if valid). Habitat: freshwater, brackish, marine.

xanthurus, Sicydium Bleeker [P.] 1853:271 [Natuurkundig Tijdschrift voor Nederlandsch Indië v. 4 (no. 2); ref. 12580] Western Sumatra, Indonesia. Holotype (unique): whereabouts unknown. •Probably a synonym of Sicyopterus macrostetholepis (Bleeker 1853) -- (Kottelat et al. 1993:153 [ref. 23448], Kottelat 2013:428 [ref. 32989], Keith et al. 2015:112 [ref. 34328]). Current status: Synonym of Sicyopterus macrostetholepis (Bleeker 1853). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.

zurstrasseni, Sicyopterus Popta [C. M. L.] 1921:213 [Zoologische Mededeelingen (Leiden) v. 6 (art. 15); ref. 15325] Wetar, Sunda Islands, Indonesia. Holotype (unique): SMF 6552. •Synonym of Sicyopterus micrurus (Bleeker 1853 or 1854) -- (Kottelat 2013:428 [ref. 32989]). •Synonym of Sicyopterus cynocephalus (Valenciennes 1837) -- (Keith et al. 2015:86 [ref. 34328]). Current status: Synonym of Sicyopterus cynocephalus (Valenciennes 1837). Gobiidae: Sicydiinae. Habitat: freshwater, brackish, marine.