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

Species in the genus Osteogaster: [ 13 ] records

aeneum, Hoplosoma Gill [T. N.] 1858:403 [43] [Annals of the Lyceum of Natural History of New York v. 6 (nos 10-13, art. 38); ref. 1750] Trinidad Island, West Indies. Lectotype: USNM 1116. Paralectotypes: ?USNM 92819 (1), 205649 (3). Type catalog: Ferraris & Vari 1992:15 [ref. 19771], Ferraris 2007:112 [ref. 29155]. On p. 43 of separate. Lectotype selected by Nijssen & Isbrücker 1980:208 [ref. 6910]. •Valid as Corydoras aeneus (Gill 1858) -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:365 [ref. 12860], Turner et al. 1992:17 [ref. 22320], Gómez & Chebez 1996:62 [ref. 23791], Britski et al. 1999:126 [ref. 24147], Fuller et al. 1999:218 [ref. 25838], Le Bail et al. 2000:184 [ref. 24549], Helmdach 2001:12 [ref. 25830], Casatti et al. 2001:5 [ref. 25929] as cf. aeneus, Isbrücker 2001:219 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], López et al. 2003:42 [ref. 27366], Casciotta et al. 2003:127 [ref. 28130] as cf. aeneus, Menni 2004:82 [ref. 28131], Mundy 2005:154 [ref. 28379], Ferraris 2007:112 [ref. 29155], Calviño & Alonso 2010:199 [ref. 30829], Tencatt et al. 2013:258 [ref. 32752], Phillip et al. 2013:18 [ref. 32896], Barriga Salazar 2014:111 [ref. 35745], Espíndola et al. 2014:26 [ref. 33269], Litz & Koerber 2014:23 [ref. 33622], Sarmiento et al. 2014:148, 190 [ref. 35004], Mirande & Koerber 2015:39 [ref. 35117], Tencatt & Ohara 2016:[12] [ref. 34353], Ottoni et al. 2016:132 [ref. 34756], Bertaco et al. 2016:416 [ref. 34561], Nión et al. 2016:31 [ref. 35565], Koerber et al. 2017:57 [ref. 35267], DoNascimiento et al. 2017:72 [ref. 35633], Grant 2018:26 [ref. 36057], dos Reis et al. 2020:464 [ref. 38364], Meza-Vargas et al. 2021:25 [ref. 39298], Chuctaya et al. 2022:37 [ref. 42137], Taphorn et al. 2022:44 [ref. 41297], Jamandre 2023:174 [ref. 40455], Loureiro et al. 2023:93 [ref. 40506], Tencatt et al. 2023:22 [ref. 40180]). •Valid as Osteogaster aenea (Gill 1858) -- (Dias et al. 2024:24 [ref. 41219] as aeneus, Koerber 2024:5 [ref. 41228] as aeneus, Koerber et al. 2024:4 [ref. 41721], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster aenea (Gill 1858). Callichthyidae: Corydoradinae. Distribution: South America: Guyana, Trinidad and Tobago, Venezuela and ? Colombia. Introduced in the Hawaiian Islands (U.S.A.), Philippines, Argentina, Paraguay and Uruguay. Habitat: freshwater.

eques, Corydoras Steindachner [F.] 1876:140 [92], Pl. 12 (fig. 3-3a) [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 74 (1. Abth.); ref. 4225] Amazon River at Codajás, Amazonas, Brazil. Lectotype: NMW 61111 [ex NMW 46723]. Paralectotypes: NMW 46723-24 (1, 1), 64700 (3); MCZ 7748 (1), 8203 (2), 8204 (12), 8206 (1); ZMA 110473 [ex NMW 46723] (2). Type catalog: Nijssen et al. 1982:44-45 [ref. 19236], Ferraris 2007:116 [ref. 29155]. On p. 92 of separate. Lectotype selected by Nijssen & Isbrücker 1980:208 [ref. 6910]. •Valid as Corydoras eques Steindachner 1876 -- (Nijssen & Isbrücker 1980:208 [ref. 6910], Burgess 1989:365 [ref. 12860], Isbrücker 2001:225 [ref. 26805], Reis in Reis et al. 2003:297 [ref. 27061] dated 1877, Ferraris 2007:116 [ref. 29155] dated 1877, Tencatt et al. 2013:258 [ref. 32752], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[17] [ref. 34388], Ohara et al. 2016:550 [ref. 34772], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Osteogaster eques (Steindachner 1876) -- (Dias et al. 2024:24 [ref. 41219], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster eques (Steindachner 1876). Callichthyidae: Corydoradinae. Distribution: South America: Amazon River basin (Bolivia, Brazil, Ecuador and Peru). Habitat: freshwater.

hephaestus, Corydoras Ohara [W. M.], Tencatt [L. F. C.] & Britto [M. R.] 2016:540, Figs. 1-6 [Zootaxa 4170 (no. 3); ref. 34772] Tributary of Igarapé Piracolina, near road BR-364, upper Rio Machado, Rio Madeira basin, Vilhena, Rondônia State, Brazil, 12°48'56"S, 60°06'37"W, elevation 585 meters. Holotype: MZUSP 119087. Paratypes: INPA, MCP, MNRJ, MZUSP, NUP. Type catalog: Oliveira et al. 2022:11 [ref. 39255]. •Valid as Corydoras hephaestus Ohara, Tencatt & Britto 2016 -- (Tencatt et al. 2023:21 [ref. 40180]). •Valid as Osteogaster hephaestus (Ohara, Tencatt & Britto 2016) -- (Dias et al. 2024:24 [ref. 41219], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster hephaestus (Ohara, Tencatt & Britto 2016). Callichthyidae: Corydoradinae. Distribution: South America: upper Machado River drainage, Madeira River basin, Brazil. Habitat: freshwater.

maclurei, Corydoras Tencatt [L. F. C.], Gomes [V. de C.] & Evers [H.-G.] 2023:4, Figs. 1-9, 11 [Neotropical Ichthyology v. 21 (no. 2): e230023; ref. 40180] Small stream tributary to the rio Araza, a bigger affluent of the rio Inambari, itself a tributary to the rio Madre de Dios, rio Madeira basin, Camanti District, Quispicanchi Province, Cusco Region, Peru, 13°16'18"S, 70°46'33"W. Holotype: MUSM 70671. Paratypes: CITL, CPUFMT, MNRJ, MZUSP, NUP. •Valid as Corydoras maclurei Tencatt, Gomes & Evers 2023. •Valid as Osteogaster maclurei (Tencatt, Gomes & Evers 2023) -- (Dias et al. 2024:24 [ref. 41219], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster maclurei (Tencatt, Gomes & Evers 2023). Callichthyidae: Corydoradinae. Distribution: South America: Inambari River drainage, Madre de Dios River subbasin, Madeira River basin, Quispicanchi Province, Peru. Habitat: freshwater.

macrosteus, Corydoras Regan [C. T.] 1912:219 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] Rio Piracicaba, São Paulo, Brazil. Lectotype: BMNH 1905.6.9.12. Paralectotypes: BMNH 1905.6.9.13-15 (3). Type catalog: Ferraris 2007:112 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:208 [ref. 6910]. The specific name [from the Greek makro + osteon = long bone] is treated as an indeclinable noun. •Doubtful species -- (Isbrücker 2001:229 [ref. 26805]). •Synonym of Corydoras aeneus (Gill 1858) -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:112 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:39 [ref. 35117], Koerber et al. 2017:57 [ref. 35267]). •Possibly valid as Corydoras macrosteus Regan 1912 -- (Tencatt et al. 2023:21 [ref. 40180]). •Possibly valid as Osteogaster macrosteus (Regan 1912). Current status: Uncertain as Osteogaster macrosteus (Regan 1912). Callichthyidae: Corydoradinae. Distribution: South America: Rio Piracicaba drainage, São Paulo State, Brazil [if valid]. Habitat: freshwater.

melanotaenia, Corydoras Regan [C. T.] 1912:217 [Annals and Magazine of Natural History (Series 8) v. 10 (no. 56); ref. 14865] Honda, Río Meta system of Río Orinoco, Tolima, Honda, 12°21'N, 71°47'W, Colombia. Lectotype: BMNH 1909.7.23.41. Paralectotype: BMNH 1909.7.23.42 (1). Type catalog: Ferraris 2007:120 [ref. 29155]. Lectotype selected by Nijssen & Isbrücker 1980:207 [ref. 6910]. •Valid as Corydoras melanotaenia Regan 1912 -- (Nijssen & Isbrücker 1980:208 [ref. 6910], Burgess 1989:366 [ref. 12860], Isbrücker 2001:229 [ref. 26805], Reis in Reis et al. 2003:300 [ref. 27061], Ferraris 2007:120 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633], Tencatt et al. 2023:21 [ref. 40180]). •Valid as Osteogaster melanotaenia (Regan 1912) -- (Dias et al. 2024:24 [ref. 41219], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster melanotaenia (Regan 1912). Callichthyidae: Corydoradinae. Distribution: South America: Orinoco River basin, Colombia. Habitat: freshwater.

microps, Corydoras Eigenmann [C. H.] & Kennedy [C. H.] 1903:506 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 55; ref. 1260] Lagoon near Rio Branco, Mato Grosso, Brazil. Holotype: CAS 20662 [ex IU 9892]. Paratypes: AMNH 1245 (1); CAS 20664 [ex IU 9893] (orig. 3, now 1), 20665 [ex IU 9895] (2); IU 9894 (1); ZMB 16905 (1). Type catalog: Ferraris 2007:112 [ref. 29155]. •Valid -- (authors). •Status uncertain -- (Isbrücker 2001:230 [ref. 26805]). •Synonym of Corydoras aeneus (Gill 1858) -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:112 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:39 [ref. 35117], Koerber et al. 2017:57 [ref. 35267]). •Possibly valid as Corydoras microps Eigenmann & Kennedy 1903 -- (Tencatt et al. 2023:21 [ref. 40180]). •Possibly valid as Osteogaster microps (Eigenmann & Kennedy 1903). Current status: Uncertain as Osteogaster microps (Eigenmann & Kennedy 1903). Callichthyidae: Corydoradinae. Distribution: South America: Paraguay River basin, Brazil, Uruguay and Argentina [if valid]. Habitat: freshwater.

myersi, Corydoras Miranda Ribeiro [P. de] 1942:427, Fig. 1 [Revista Brasileira de Biologia v. 2 (no. 4); ref. 10389] Rio Javari, tributary to Rio Solimões, near Benjamin Constant (4°23'S, 69°59'W), Amazonas, Brazil. Holotype: MNRJ 3.626. Paratypes: MNRJ 3.627 (now 22); USNM 163252 [ex MNRJ 3.627] (2); ZMA 115272 (4). Type information/catalog: Miranda Ribeiro 1959:12 [ref. 10392]. Nijssen et al. 1982:47 [ref. 19236], Nijssen & Isbrücker 1980:210 [ref. 6910], Ferraris & Vari 1992:14 [ref. 19771], Ferraris 2007:123 [ref. 29155]. •Synonym of Corydoras rabauti LaMonte 1941 -- (Nijssen & Isbrücker 1980:210 [ref. 6910], Isbrücker 2001:234 [ref. 26805], Reis in Reis et al. 2003:302 [ref. 27061], Ferraris 2007:123 [ref. 29155], Tencatt et al. 2013:258 [ref. 32752]). •Synonym of Osteogaster rabauti (LaMonte 1941). Current status: Synonym of Osteogaster rabauti (LaMonte 1941). Callichthyidae: Corydoradinae. Habitat: freshwater.

oharai, Osteogaster Tencatt [L. F. C.], Carvalho [V. de], Silva [H. P. da] & Britto [M. R.] 2025:5, Figs. 1-11 [Neotropical Ichthyology v. 23 (no. 2): e240134; ref. 42245] Stream tributary of the rio Aripuanã, upstream Salto das Andorinhas and Dardanelos waterfalls, rio Madeira basin, Aripuanã, Mato Grosso, Brazil, 10°16'46"S, 59°33'08"W. Holotype: MNRJ 55884. Paratypes: CPUFMT, INPA, UFRO. Plus additional non-type material. •Valid as Osteogaster oharai Tencatt, Carvalho, Silva & Britto 2025. Current status: Valid as Osteogaster oharai Tencatt, Carvalho, Silva & Britto 2025. Callichthyidae: Corydoradinae. Distribution: South America: Aripuanã River drainage, Madeira River basin, and Juruena River drainage, Tapajós River basin, Mato Grosso State, Brazil. Habitat: freshwater.

rabauti, Corydoras LaMonte [F. R.] 1941:5 [Zoologica, Scientific Contributions of the New York Zoological Society v. 26 (pt 1, no. 2); ref. 13223] A tributary of Amazon River, 7 days by river boat from manaus, 3°06'S, 60°00'W, Amazonas, Brazil. Holotype: AMNH 15644. Paratypes: AMNH 15645 (1), 15646 (orig. 7, now 4), ?21773SW (1, c&s); USNM 16272 [ex AMNH 15646] (1). Type catalog: Ferraris 2007:123 [ref. 29155]. •Valid as Corydoras rabauti LaMonte 1941 -- (Nijssen & Isbrücker 1980:210 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 2001:233 [ref. 26805], Reis in Reis et al. 2003:302 [ref. 27061], Ferraris 2007:123 [ref. 29155], DoNascimiento et al. 2017:73 [ref. 35633], Meza-Vargas et al. 2021:25 [ref. 39298]). •Valid as Osteogaster rabauti (LaMonte 1941) -- (Dias et al. 2024:24 [ref. 41219], Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster rabauti (LaMonte 1941). Callichthyidae: Corydoradinae. Distribution: South America: western Amazon, Solimões and Negro River basins (Brazil, Colombia and Peru). Habitat: freshwater.

schultzei, Corydoras Holly [M.] 1940:111 [Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 77 (no. 15); ref. 13059] Aquarium specimen (said to be from very small water-courses of the Amazon). Syntypes: Münchner Tierpark A.G. 80/1938 (4) (lost in WWII). Type catalog: Ferraris 2007:112 [ref. 29155], Bogutskaya et al. 2022:74 [ref. 39277]. •Synonym of Corydoras aeneus (Gill 1858) -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Isbrücker 2001:235 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:112 [ref. 29155], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:39 [ref. 35117], Koerber et al. 2017:57 [ref. 35267]). •Possibly valid as Corydoras schultzei Holly 1940 -- (Tencatt et al. 2023:21 [ref. 40180]). •Possibly valid as Osteogaster schultzei (Holly 1940). Current status: Uncertain as Osteogaster schultzei (Holly 1940). Callichthyidae: Corydoradinae. Distribution: South America: lower Amazon basin, Brazil [if valid]. Habitat: freshwater.

venezuelanus, Corydoras Ihering [R. von] 1911:383 [Revista do Museo Paulista, São Paulo v. 8 (1910); ref. 14822] Río Cabriales, Valencia, State of Carabobo, Venezuela. Lectotype: MZUSP [ex DZSASP] 146. Paralectotypes: MZUSP [ex DZSASP] 5398 (1), MZUSP [ex DZSASP] 5399 (1). Type catalog: Ferraris 2007:112 [ref. 29155]. Lectotype selected by Britski 1969:208 [ref. 12401]. •Synonym of Corydoras aeneus (Gill 1858) -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Isbrücker 2001:237 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Ferraris 2007:112 [ref. 29155], Ohara et al. 2016:549 [ref. 34772], Litz & Koerber 2014:23 [ref. 33622], Mirande & Koerber 2015:39 [ref. 35117], Koerber et al. 2017:57 [ref. 35267]). •Synonym of Osteogaster aenea (Gill 1858). Current status: Synonym of Osteogaster aenea (Gill 1858). Callichthyidae: Corydoradinae. Habitat: freshwater.

zygatus, Corydoras Eigenmann [C. H.] & Allen [W. R.] 1942:175, Pl. 12 (fig. 1) [Fishes of western South America; ref. 1246] Río Hallagua system, Yurimaguas (5°54'S, 76°04'W), Loreto, Peru. Holotype: CAS 24756 [ex IU 15704]. Paratypes: CAS 24757 [ex IU 15704] (7). Type catalog: Ferraris 2007:126 [ref. 29155]. We treat the species epithet (= yoke-shaped) as a declinable adjective. •Valid as Corydoras zygatus Eigenmann & Allen 1942 -- (Nijssen & Isbrücker 1980:210 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:367 [ref. 12860], Isbrücker 2001:238 [ref. 26805], Reis in Reis et al. 2003:304 [ref. 27061], Shimabukuro-Dias et al. 2004:141 [ref. 27796], Ferraris 2007:126 [ref. 29155], Tencatt et al. 2013:258 [ref. 32752], Barriga Salazar 2014:111 [ref. 35745], Tencatt & Pavanelli 2015:294 [ref. 35434], Ottoni et al. 2016:133 [ref. 34756] as zigatus, Tencatt & Evers 2016:[12] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388], DoNascimiento et al. 2017:73 [ref. 35633], Meza-Vargas et al. 2021:25 [ref. 39298], Chuctaya et al. 2022:38 [ref. 42137]). •Valid as Osteogaster zygata (Eigenmann & Allen 1942) -- (Dias et al. 2024:24 [ref. 41219] as zygatus, Tencatt et al. 2025:25 [ref. 42245]). Current status: Valid as Osteogaster zygata (Eigenmann & Allen 1942). Callichthyidae: Corydoradinae. Distribution: South America: Amazon River basin (Brazil, Colombia, Ecuador and Peru). Habitat: freshwater.