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Species in the genus Hypomasticus: [ 21 ] records

affinis, Leporinus Steindachner [F.] 1875:228 [18], Pl. 3 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 71 (no. 3); ref. 18773] Rio Arassuahy, tributary of Rio Jequitinhonha, Minas Gerais State, Brazil. Holotype (unique): NMW 68405. On p. 18 of separate. Clearly labeled as a new species. Objectively invalid; preoccupied by Leporinus affinis Günther 1864. •Synonym of Leporinus steindachneri Eigenmann 1907 -- (Garavello & Britski in Reis et al. 2003:78 [ref. 27061]). •Synonym of Hypomasticus steindachneri (Eigenmann 1907) -- (Ito et al. 2025:15 [ref. 42551]). 1°Homonym. Current status: Synonym of Hypomasticus steindachneri (Eigenmann 1907). Anostomidae: Leporininae. Habitat: freshwater.

arcus, Leporinus Eigenmann [C. H.] 1912:300, Pl. 42 (fig. 3) [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Tukeit, Guyana. Holotype: FMNH 53366 [ex CM 1832]. Paratypes: CAS 18544 [ex IU 12122] (1); FMNH 53795 [ex CM 2296] (1). Additional original material: BMNH 1912.1.31.3 (1); CAS 61865-67 [ex IU 12119-21] (1, 1, 1); FMNH 53363-65 (1, 1, 1). Type catalog: Henn 1928:57 [ref. 12305], Ibarra & Stewart 1987:51 [ref. 12367]. •Valid as Leporinus arcus Eigenmann 1912 -- (Garavello & Britski in Reis et al. 2003:74 [ref. 27061], DoNascimiento 2016:527 [ref. 34727], DoNascimiento et al. 2017:[3] [ref. 35679], Birindelli et al. 2019:5 [ref. 36868], Taphorn et al. 2022:11 [ref. 41297]). •Valid as Hypomasticus arcus (Eigenmann 1912) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus arcus (Eigenmann 1912). Anostomidae: Leporininae. Distribution: South America: French Guiana, Suriname, Guyana and Venezuela. Habitat: freshwater.

australis, Hypomasticus Ito [I. S. B.], Souza-Shibatta [L.], Oyakawa [O. T.], Garavello [J. C.], Britski [H. A.] & Birindelli [J. L. O.] 2025:32, Figs. 17-27, 29C-D [Neotropical Ichthyology v. 23 (no. 3): e250003; ref. 42551] Rio Ribeira de Iguape, near the confluence with rio Juquiá, municipality of Registro, São Paulo State, Brazil, 24°24'13.5"S, 47°49'29.7"W. Holotype: MZUSP 125891. Paratypes: LBP, LISDEBE, MZUEL, MZUSP. Plus additional non-type material. •Valid as Hypomasticus australis Ito, Souza-Shibatta, Oyakawa, Garavello, Britski & Birindelli 2025. Current status: Valid as Hypomasticus australis Ito, Souza-Shibatta, Oyakawa, Garavello, Britski & Birindelli 2025. Anostomidae: Leporininae. Distribution: South America: Ribeira de Iguape, Una do Prelado and Rio de Janeiro coastal river basins, including the Lagoa Feia system, from Rio de Janeiro State to eastern São Paulo and northeastern Paraná States, Brazil. Habitat: freshwater.

badueli, Leporinus Puyo [J.] 1948:81 [4], Fig. 2 [Bulletin de la Société d'Histoire Naturelle de Toulouse v. 83 (nos 1-2); ref. 13029] Creek near the "mountain" at Baduel and creek on the left bank of the Mana River, French Guiana. Syntypes: (2) lost. On p. 4 of separate. •Valid as Leporinus badueli Puyo 1948 -- (Garavello & Britski in Reis et al. 2003:74 [ref. 27061]). •Synonym of Leporinus granti Eigenmann 1912 -- (Géry et al. 1991:9 [ref. 21021], Britski & Birindelli 2013:30 [ref. 32699]). •Synonym of Hypomasticus granti (Eigenmann 1912). Current status: Synonym of Hypomasticus granti (Eigenmann 1912). Anostomidae: Leporininae. Habitat: freshwater.

copelandii, Leporinus Steindachner [F.] 1875:236 [26], Pl. 5 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 71 (no. 3); ref. 18773] Rio Parahyba and tributaries at Mendez; Juiz de Fora; River Doce; River São Matheos; Rio Jequitinhonha; Rio Quenda at Santa Cruz. Syntypes: (many) MCZ 19773 (1), 19775 (1), 20359 (1), 20408-410 (3, 1, 4), 20420 (3), 20460 (1), 20490-91 (9, 1); MNHN 1913-0134 [ex NMW] (1); NMW 68379-87 (2, 1, 1, 1, 2, 1, 1, 1, 3), 68391-94 (2, 1, 1, 3), 69592 (2); ZMUC 969 (1). Type catalog: Bertin 1948:33 [ref. 19577], Nielsen 1974:47 [ref. 9588]. On p. 26 of separate. Spelled copelandii in main heading and as copelandi on p. 237 and twice on p. 245. •Valid as Leporinus copelandii Steindachner 1875 -- (Garavello & Britski in Reis et al. 2003:74 [ref. 27061], Catelani et al. 2014:931 [ref. 37496], Silva et al. 2020:4 [ref. 37809]). •Valid as Hypomasticus copelandii (Steindachner 1875) -- (Birindelli et al. 2020:423 [ref. 37635], Mendes et al. 2022:[4] [ref. 38952], Ceríaco et al. 2023:26 [ref. 40710], Vieira-Guimarães et al. 2024:35 [ref. 41258]). Current status: Valid as Hypomasticus copelandii (Steindachner 1875). Anostomidae: Leporininae. Distribution: South America: coastal drainages, Paraíba do Sul to Mucuri River basins (eastern Brazil). Habitat: freshwater, brackish.

despaxi, Leporinus Puyo [J.] 1943:141 [1], Fig. 1 [Bulletin de la Société d'Histoire Naturelle de Toulouse v. 78 (no. 3); ref. 13072] Creek at left bank of upper Marouni River, French Guiana. Syntypes: (2, lost). On p. 1 of separate. •Valid as Leporinus despaxi Puyo 1943 -- (Géry et al. 1991:18 [ref. 21021], Planquette et al. 1996:146 [ref. 22818], Britski 1997:29 [ref. 24113], Garavello & Britski in Reis et al. 2003:75 [ref. 27061], Britski et al. 2012:458 [ref. 32317]). •Valid as Hypomasticus despaxi (Puyo 1943) -- (Sidlauskas & Vari 2008:74 [ref. 29786], Birindelli et al. 2013:460 [ref. 32924], Borstein et al. 2022:16 [ref. 39507]). Current status: Valid as Hypomasticus despaxi (Puyo 1943). Anostomidae: Leporininae. Distribution: South America: coastal rivers of French Guiana to northern Brazil (Brazil, French Guiana and Suriname). Habitat: freshwater.

gomesi, Leporinus Garavello [J. C.] & Santos [G. M. dos] 1981:188 [Anais do III Encontro de Zoologia do Nordeste. v. 13 (no. 12); ref. 19202] Rio Aripuana above the Cachoeira de Dardanelos, Humboldt, Aripuana, Mato Grosso State, Brazil. Holotype: MZUSP 14436. Paratypes: MZUSP: 14437-41 (1, 15, 6, 12, 5). Type catalog: Oyakawa 1996:473-474 [ref. 23140]. Dates to 1981 as above with a brief diagnosis. Also appeared Garavello 1990:165, figs. 2 and 4 [ref. 14314]. Types from ref. 14314 assumed to apply to ref. 19202. •Valid as Leporinus gomesi Garavello & Santos 1981 -- (Garavello & Britski in Reis et al. 2003:75 [ref. 27061] with author Garavello 1990, Britski & Birindelli 2013:25 [ref. 32699]). •Valid as Hypomasticus gomesi (Garavello & Santos 1981) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus gomesi (Garavello & Santos 1981). Anostomidae: Leporininae. Distribution: South America: Aripuanã River drainage, Brazil. Habitat: freshwater.

gomesi, Leporinus Garavello [J. C.] & Santos [G. M. dos] in Garavello 1990:165, Figs. 2, 4 [Bulletin Zoölogisch Museum, Universiteit van Amsterdam v. 12 (no. 11); ref. 14314] Rio Aripuana above the Cachoeira de Dardanelos, Humboldt, Aripuana, Mato Grosso State, Brazil. Holotype: MZUSP 14436. Paratypes: MZUSP: 14437-41 (1, 15, 6, 12, 5). Appeared first with a short description in Garavello & Santos 1981 [ref. 19202] in an abstract of a meeting, accepted as published. •Synonym and homonym of Leporinus gomesi Garavello & Santos 1981. •Synonym of Hypomasticus gomesi (Garavello & Santos 1981) 1°Homonym. Current status: Synonym of Hypomasticus gomesi (Garavello & Santos 1981). Anostomidae: Leporininae. Habitat: freshwater.

granti, Leporinus Eigenmann [C. H.] 1912:307, Pl. 43 (fig. 3) [Memoirs of the Carnegie Museum v. 5 (no. 1); ref. 1227] Maripicru Creek, Guyana. Holotype: FMNH 53383 [ex CM 1851]. Paratypes: (7) CAS 61649 [ex IU 12129] (3); FMNH 7323 (1), 53383 (1); MCZ 29929 (1). Type catalog: Henn 1928:57 [ref. 12305], Ibarra & Stewart 1987:51 [ref. 12367]. BMNH 1911.10.31.465 (1) is not this species (see Britski & Birindella 2013:30 [ref. 32699]). •Valid as Leporinus granti Eigenmann 1912 -- (Garavello 1990:167 [ref. 14314], Santos & Jégu 1990:170 [ref. 20180], Géry et al. 1991:9 [ref. 21021], Planquette et al. 1996:154 [ref. 22818], Santos & Jégu 1996:166 [ref. 23717], Britski 1997:37 [ref. 24113], Garavello 2000:199 [ref. 24492], Garavello & Britski in Reis et al. 2003:75 [ref. 27061], Britski & Birindelli 2013:25 [ref. 32699], Barriga Salazar 2014:105 [ref. 35745] as cf. granti, DoNascimiento et al. 2017:40 [ref. 35633], Brosse et al. 2019:136 [ref. 38320], Borstein et al. 2022:16 [ref. 39507], Taphorn et al. 2022:11 [ref. 41297]). •Valid as Hypomasticus granti (Eigenmann 1912) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus granti (Eigenmann 1912). Anostomidae: Leporininae. Distribution: South America: Orinoco River basin to French Guiana (Ecuador?, French Guiana, Guyana, Suriname and Colombia). Habitat: freshwater.

lebaili, Leporinus Géry [J.] & Planquette [P.] 1983:66, Figs. 1, 2, 5a [Revue française d'Aquariologie Herpétologie v. 10 (no. 3); ref. 8340] Midstream of Maroni River at Laissé-Dédé Falls, French Guiana. Holotype: MHNG 2152.48. Paratypes: Lab. Hydrobiol. INRA (Guiana) (1), MHNG 215249-50 (1, 1), MHNG uncat. (2), MNHN 1984-0353 (2), RMNH 80 (6), RMNH uncat. (1). Type catalog: Weber 1998:8 [ref. 32707]. •Valid as Leporinus lebaili Géry & Planquette 1983 -- (Planquette et al. 1996:152 [ref. 22818], Garavello & Britski in Reis et al. 2003:76 [ref. 27061], Sidlauskas & Mol 2011:[7] [ref. 31287], Birindelli et al. 2019:5 [ref. 36868]). •Valid as Hypomasticus lebaili (Géry & Planquette 1983) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus lebaili (Géry & Planquette 1983). Anostomidae: Leporininae. Distribution: South America: Maroni River basin, French Guiana and Suriname. Habitat: freshwater.

lineomaculatus, Hypomasticus Birindelli [J. L. O.], Peixoto [L. A. W.], Wosiacki [W. B.] & Britski [H. A.] 2013:464, Figs. 1, 3, 4 [Copeia 2013 (no. 3); ref. 32924] Pará, Almeirim, creek tributary of Rio Paru, 0°51'13.8"N, 53°57'05.8"W, Brazil. Holotype: MPEG 15573. Paratypes: many at ANSP, LPB, MPEG, MZUSP. •Valid as Hypomasticus lineomaculatus Birindelli, Peixoto, Wosiacki & Britski 2013. Current status: Valid as Hypomasticus lineomaculatus Birindelli, Peixoto, Wosiacki & Britski 2013. Anostomidae: Leporininae. Distribution: South America: Rio Paru drainage, Pará, Brazil. Habitat: freshwater.

megalepis, Leporinus Günther [A.] 1863:443 [Annals and Magazine of Natural History (Series 3) v. 12 (no. 72); ref. 1973] Essequibo River, Guyana. Lectotype: BMNH 1864.1.21.45. Paralectotypes: BMNH 1864.1.21.43-44 (2). Lectotype selected by Géry et al. 1988:709 [ref. 27759]. One species in BMNH 1864.1.21.44 is not this species (granti) and the other is friderici. •Synonym of Leporinus maculatus Müller & Troschel 1844 -- (Taphorn 1992:39 [ref. 23654]). •Valid as Leporinus megalepis Günther 1863 -- (Géry et al. 1988:704 [ref. 27759], Santos & Jégu 1996:166 [ref. 23717], Garavello 2000:199 [ref. 24492], Garavello & Britski in Reis et al. 2003:76 [ref. 27061]). •Valid as Hypomasticus megalepis (Günther 1863) -- (Sidlauskas & Vari 2008:74 [ref. 29786], Britski & Birindelli 2013:25 [ref. 32699], Birindelli et al. 2013:464 [ref. 32924], Birindelli et al. 2016:113 [ref. 34843], Taphorn et al. 2022:11 [ref. 41297]). Current status: Valid as Hypomasticus megalepis (Günther 1863). Anostomidae: Leporininae. Distribution: South America: Guyana, Suriname and Brazil. Habitat: freshwater.

melanostictus, Leporinus Norman [J. R.] 1926:94 [Annals and Magazine of Natural History (Series 9) v. 18 (no. 103); ref. 15602] Approuague River and Oyapock River, French Guiana. Syntypes: (2) BMNH 1926.3.2.566-567 (2), 1926.3.2.568-569 (2). •Valid as Leporinus melanostictus Norman 1926 -- (Géry et al. 1991:9 [ref. 21021], Planquette et al. 1996:150 [ref. 22818], Garavello & Britski in Reis et al. 2003:76 [ref. 27061], DoNascimiento et al. 2017:[3] [ref. 35679]). •Valid as Hypomasticus melanostictus (Norman 1926) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus melanostictus (Norman 1926). Anostomidae: Leporininae. Distribution: South America: Approuague and Oyapock River basins, Brazil and French Guiana. Habitat: freshwater.

mormyrops, Leporinus Steindachner [F.] 1875:240 [30], Pl. 6 [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 71 (no. 3); ref. 18773] Río Parahyba and Río Piabanha, Brazil. Syntypes: (several) MCZ 20366 (5), 20369 (1); ?MNHN 1913-0132 and 0133 [ex NMW] (2) Río Doce; NMW 68350-54 (3, 1, 2, 2, 1); USNM 120420 [ex MCZ 20366] (1). Type catalog: Bertin 1948:33 [ref. 19577], Vari & Howe 1991:29 [ref. 19022]. On p. 30 of separate. •Valid as Leporinus mormyrops Steindachner 1875 -- (Johannes 1999:16 [ref. 24121], Garavello & Britski in Reis et al. 2003:77 [ref. 27061]). •Valid as Hypomasticus mormyrops (Steindachner 1875) -- (Sidlauskas & Vari 2008:74 [ref. 29786], Birindelli et al. 2013:464 [ref. 32924], Birindelli et al. 2020:423 [ref. 37635], Silva et al. 2020:4 [ref. 37809], Vieira-Guimarães et al. 2024:35 [ref. 41258]). Current status: Valid as Hypomasticus mormyrops (Steindachner 1875). Anostomidae: Leporininae. Distribution: South America: coastal drainages, Paraíba do Sul to Mucuri River basins (Brazil). Habitat: freshwater.

nijsseni, Leporinus Garavello [J. C.] 1990:163, Fig. 1 [Bulletin Zoölogisch Museum, Universiteit van Amsterdam v. 12 (no. 11); ref. 14314] About 27 kilometers south of Village Dam, Sara Creek, Brokopondo District, Suriname. Holotype: ZMA 107562. Paratypes: ZMA 105213 (17), 105597 (6), 105617 (3), 105770 (50), 107025 (3), 107033 (9), 107044 (2), 107616 (16); MNHG uncat. [ex ZMA 105770] (5); MZUSP 14442 [ex ZMA 107033] (2). Type catalog: Oyakawa 1996:475 [ref. 23140]. •Valid as Leporinus nijsseni Garavello 1990 -- (Géry et al. 1991:11 [ref. 21021], Planquette et al. 1996:156 [ref. 22818], Garavello & Britski in Reis et al. 2003:77 [ref. 27061], Britski & Birindelli 2013:25 [ref. 32699], Melo et al. 2016:132 [ref. 34701], Borstein et al. 2022:16 [ref. 39507]). •Valid as Hypomasticus nijsseni (Garavello 1990) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus nijsseni (Garavello 1990). Anostomidae: Leporininae. Distribution: South America: Saramacca creek and Suriname River drainage (Brazil, French Guiana and Suriname). Habitat: freshwater.

santanai, Hypomasticus Birindelli [J. L. O.] & Melo [B. F.] in Birindelli, Melo, Ribeiro-Silva, Diniz & Oliveira 2020:417, Figs. 1-2 [Copeia v. 108 (no. 2); ref. 37635] Rio Gongogi, tributary of Rio de Contas, approximately 2 km above city of Dario Meira, Bahia, Brazil, 14°27'44.2"S, 39°55'01.4"W. Holotype: MZUEL 18604. Paratypes: LBP, MZUEL. •Valid as Hypomasticus santanai Birindelli & Melo 2020 -- (Vieira-Guimarães et al. 2024:35 [ref. 41258]). Current status: Valid as Hypomasticus santanai Birindelli & Melo 2020. Anostomidae: Leporininae. Distribution: South Ameri9ca: Rio de Contas basin, Bahia (Brazil). Habitat: freshwater.

santosi, Leporinus Britski [H. A.] & Birindelli [J. L. O.] 2013:26, Figs. 1-2 [Neotropical Ichthyology v. 11 (no. 1); ref. 32699] Parauapebas, igarapé de Pojuca, tributary of rio Itacaiúnas, at Caldeirão, approximately 5°52'S, 50°32'W, Pará, Brazil. Holotype: MZUSP 110000. Paratypes: ANSP, INPA, MZUSP. •Valid as Hypomasticus santosi (Britski & Birindelli 2013) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus santosi (Britski & Birindelli 2013). Anostomidae: Leporininae. Distribution: South America: lower Tocantins River drainage, Pará State, Brazil. Habitat: freshwater.

steindachneri, Leporinus Eigenmann [C. H.] in Eigenmann & Ogle 1907:9 [Proceedings of the United States National Museum v. 33 (no. 1556); ref. 1266] Rio Arassuahy, tributary of Rio Jequitinhonha, Minas Gerais State, Brazil. Holotype (unique): NMW 68405. Replacement name for Leporinus affinis Steindachner 1875, preoccupied by Leporinus affinis Günther 1864. •Valid as Leporinus steindachneri Eigenmann 1907 -- (Garavello & Britski in Reis et al. 2003:78 [ref. 27061], Silva et al. 2020:4 [ref. 37809]). •Valid as Hypomasticus steindachneri (Eigenmann 1907) -- (Birindelli et al. 2020:423 [ref. 37635], Vieira-Guimarães et al. 2024:35 [ref. 41258], Ito et al. 2025:15 [ref. 42551]). Replacement Name. Current status: Valid as Hypomasticus steindachneri (Eigenmann 1907). Anostomidae: Leporininae. Distribution: South America: Pardo, Jequitinhonha, Itanhém, Mucuri and Doce coastal river basins, from southern Bahia State to the eastern portion of Minas Gerais and Espírito Santo States, Brazil. Habitat: freshwater.

tepui, Leporinus Birindelli [J. L. O.], Britski [H. A.] & Provenzano [F.] 2019:2, Fig. 1 [Neotropical Ichthyology v. 17 (no. 2): e190022; ref. 36868] Chimantá-tepuí, río Orinoco basin, Bolivár, Venezuela, about. 5°18'N, 62°10'W. Holotype: FMNH 45711. Paratypes: FMNH, MBUCV, MZUEL, MZUSP, •Valid as Hypomasticus tepui (Birindelli, Britski & Provenzano 2019) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus tepui (Birindelli, Britski & Provenzano 2019). Anostomidae: Leporininae. Distribution: South America: Orinoco River basin, highlands of the Guyana Shield, Venezuela. Habitat: freshwater.

thayeri, Leporinus Borodin [N. A.] 1929:273, Pl. 2 [Memoirs of the Museum of Comparative Zoology v. 50 (no. 3); ref. 527] Rio Parahyba, Brazil. Holotype: MCZ 20364. Paratypes: MCZ 94492 [ex MCZ 20364a] (1), 20367 (5), 20414 (1). •Synonym of Leporinus mormyrops Steindachner 1875 -- (Johannes 1999:16 [ref. 24121]). •Valid as Leporinus thayeri Borodin 1929 -- (Garavello & Britski in Reis et al. 2003:78 [ref. 27061]). •Valid as Hypomasticus thayeri (Borodin 1929) -- (Sidlauskas & Vari 2008:74 [ref. 29786], Birindelli et al. 2013:464 [ref. 32924], Birindelli et al. 2020:423 [ref. 37635], Vieira-Guimarães et al. 2024:35 [ref. 41258]). Current status: Valid as Hypomasticus thayeri (Borodin 1929). Anostomidae: Leporininae. Distribution: South America: coastal drainages in Paraíba do Sul to Mucuri River basins (Brazil). Habitat: freshwater.

torrenticola, Leporinus Birindelli [J. L. O.], Teixeira [T. F.] & Britski [H. A.] 2016:106, Figs. 5-8 [Zootaxa 4178 (no. 1); ref. 34843] Pará, Altamira, Xingu basin, rio Curuá, tributary of rio Iriri, at Castelo dos Sonhos, Brazil, 8°19'06"S 55°05'24"W. Holotype: MNRJ 34071. Paratypes: ANSP, MNRJ, MZUEL, MZUSP. Plus non-type specimens. •Valid as Hypomasticus torrenticola (Birindelli, Teixeira & Britski 2016) -- (Sidlauskas et al. 2025:20 [ref. 41973]). Current status: Valid as Hypomasticus torrenticola (Birindelli, Teixeira & Britski 2016). Anostomidae: Leporininae. Distribution: South America: Xingu River basin, Pará State, Brazil. Habitat: freshwater.