areio, Corydoras Knaack [J.] 2000:47, Figs. [VDA--aktuell 2/2000; ref. 25359] Streams of the Corr. Areio systems, in the vicinity of Vila Nova, East of Cuiaba, Mato Grosso, Brazil. Holotype: BZM 33113. Paratypes: BZM 33136 (9). Type catalog: Ferraris 2007:113 [ref. 29155]. •Valid as Corydoras areio Knaack 1999 -- (Isbrücker 2001:221 [ref. 26805], Reis in Reis et al. 2003:295 [ref. 27061], Ferraris 2007:113 [ref. 29155], Tencatt et al. 2014:78 [ref. 33230], 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 et al. 2020:5 [ref. 37986], Dias et al. 2024:23 [ref. 41219]). Current status: Valid as Corydoras areio Knaack 2000. Callichthyidae: Corydoradinae. Distribution: South America: upper Paraguay River basin (Mato Grosso and Mato Grosso do Sul, Brazil). Habitat: freshwater.