prionotos, Corydoras Nijssen [H.] & Isbrücker [I. J. H.] 1980:5, Figs. 6-7 [Beaufortia v. 30 (no. 1); ref. 8681] Linhares, 19°22'S, 40°04'W, Lagoa Juparaná, Rio Doce system, Espírito Santo State, Brazil. Holotype: MNRJ 10537. Paratypes: BMNH 1905.6.9.7 (1); CAS 16016 [ex IU 10796] (1); FMNH 54882 (1); MNRJ 5068 (1), 5219 (58), 5367 (1), 6183 (1), 9713 (12), 10538-44 (2, 1, 2, 3, 3, 1, 2); NMW 18993 (1), 46786 (3); CAS-SU 47856 (5); ZMA 110476 (3), 115323 (5). Type catalog: Nijssen et al. 1982:49 [ref. 19236], Ferraris 2007:130 [ref. 29155]. •Valid as Corydoras prionotos Nijssen & Isbrücker 1980 -- (Nijssen & Isbrücker 1980:207 [ref. 6910], Burgess 1989:367 [ref. 12860], Isbrücker 1999:41 [ref. 26260], Isbrücker 2001:233 [ref. 26805], Reis in Reis et al. 2003:301 [ref. 27061], Knaack 2007:43 [ref. 29221]). •Valid as Scleromystax prionotos (Nijssen & Isbrücker 1980) -- (Britto 2003:147 [ref. 27338], Britto & Reis 2005:481 [ref. 28458], Knaack 2007:43 [ref. 29221], Ferraris 2007:130 [ref. 29155], Britto et al. 2016:[9] [ref. 34806], Silva et al. 2020:10 [ref. 37809]). Current status: Valid as Scleromystax prionotos (Nijssen & Isbrücker 1980). Callichthyidae: Corydoradinae. Distribution: South America: coastal rivers (eastern Brazil). Habitat: freshwater.