Species that contain: Corydoras and acutus [ 2 ] records

acutus, Corydoras Cope [E. D.] 1872:281 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Río Ambiyacu, Shansho Caño, Loreto, Peru. Neotype: CAS-SU 33307. Type catalog: Böhlke 1984:31 [ref. 13621], Ferraris 2007:112 [ref. 29155]. Neotype designated by Nijssen & Isbrücker 1980:215 [ref. 6910]; original syntypes ANSP 8292-8293 lost. •Valid as Corydoras acutus Cope 1872 -- (Ovchynnyk 1967:36 [ref. 37559], Nijssen & Isbrücker 1980:215 [ref. 6910], Ortega & Vari 1986:16 [ref. 9708], Burgess 1989:365 [ref. 12860], Isbrücker 1999:40 [ref. 24040], Isbrücker 2001:219 [ref. 26805], Reis in Reis et al. 2003:294 [ref. 27061], Barriga Salazar 2014:111 [ref. 35745], Tencatt et al. 2014:78 [ref. 33230], Sarmiento et al. 2014:190 [ref. 35004], Tencatt & Pavanelli 2015:294 [ref. 35434], Tencatt & Ohara 2016:[12] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[16] [ref. 34388], Tencatt & Ohara 2016:432 [ref. 34627], Ottoni et al. 2016:132 [ref. 34756], Meza-Vargas et al. 2021:24 [ref. 39298], Tencatt et al. 2021:8 [ref. 38289]). Current status: Valid as Corydoras acutus Cope 1872. Callichthyidae: Corydoradinae. Distribution: South America: Amazon River basin (northern Peru, Ecuador and Bolivia). Habitat: freshwater.

stenocephalus, Corydoras Eigenmann [C. H.] & Allen [W. R.] 1942:177, Pl. 12 (fig. 2) [Fishes of western South America; ref. 1246] Lake Yarinococha (8°15'S, 74°45'W), Río Ucayali system, Loreto, Peru. Holotype (unique): CAS 36386 [ex IU 15817 and CAS 15817]. Type catalog: Ferraris 2007:125 [ref. 29155]. •Synonym of Corydoras acutus Cope 1872 -- (Nijssen & Isbrücker 1980:215 [ref. 6910]). •Valid as Corydoras stenocephalus Eigenmann & Allen 1942 -- (Burgess 1989:367 [ref. 12860], Isbrücker 1999:40 [ref. 24040], Isbrücker 2001:236 [ref. 26805], Reis in Reis et al. 2003:303 [ref. 27061], Ferraris 2007:125 [ref. 29155], Barriga Salazar 2014:111 [ref. 35745], Sarmiento et al. 2014:190 [ref. 35004], Tencatt et al. 2014:78 [ref. 33230], Tencatt & Evers 2016:[12] [ref. 34387], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt et al. 2016:[18] [ref. 34388], Meza-Vargas et al. 2021:25 [ref. 39298]). Current status: Valid as Corydoras stenocephalus Eigenmann & Allen 1942. Callichthyidae: Corydoradinae. Distribution: South America: upper Amazon basin (Bolivia, Ecuador and Peru). Habitat: freshwater.