parallelus, Corydoras Burgess [W. E.] 1993:154, Figs. [Tropical Fish Hobbyist v. 41 (no. 12) (issue no. 450); ref. 20758] Rio Içana, Rio Negro drainage, Brazil. Holotype: MZUSP 45716. Paratypes: USNM 326187 (16). Type catalog: Ferraris 2007:122 [ref. 29155]. •Valid as Corydoras parallelus Burgess 1993 -- (Burgess & Finley 1996:168 [ref. 22901], Isbrücker 2001:232 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Britto & Lima 2003:89 [ref. 27314], Ferraris 2007:122 [ref. 29155], Tencatt & Ohara 2016:[13] [ref. 34353], Tencatt & Evers 2016:[11] [ref. 34387], Tencatt et al. 2016:[17] [ref. 34388]). •Valid as Hoplisoma parallelum (Burgess 1993) -- (Dias et al. 2024:27 [ref. 41219]). Current status: Valid as Hoplisoma parallelum (Burgess 1993). Callichthyidae: Corydoradinae. Distribution: South America: upper Negro River basin, Brazil. Habitat: freshwater.