stigmaticus, Ancistrus Eigenmann [C. H.] & Eigenmann [R. S.] 1889:48 [Proceedings of the California Academy of Sciences (Series 2) v. 2; ref. 1253] São Matheos [= São Mateus], Goiás, Espirito Santo, 15°47'S, 50°07'W, Brazil. Lectotype: MCZ 77659. Paralectotypes: MCZ 8022 (1). Type catalog: Ferraris 2007:224 [ref. 29155]. Description appears in key on p. 47. Lectotype selected by Muller 1989:895 [ref. 13512]. •Valid as Ancistrus stigmaticus Eigenmann & Eigenmann 1889 -- (Isbrücker 1980:72 [ref. 2303], Muller 1989:895 [ref. 13512], Burgess 1989:437 [ref. 12860], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:378 [ref. 27061], Ferraris 2007:224 [ref. 29155], de Oliveira et al. 2015:81 [ref. 33869]). Current status: Valid as Ancistrus stigmaticus Eigenmann & Eigenmann 1889. Loricariidae: Hypostominae. Distribution: Upper Araguaia River basin, Brazil. Habitat: freshwater.