cachorro, Acestrorhynchus Fowler [H. W.] 1940:274, Fig. 61 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 91 (for 1939); ref. 1432] Boca Chica, Río Ucayali basin, Peru. Holotype (unique): ANSP 68679. Type catalog: Böhlke 1984:44 [ref. 13621]. •Synonym of Acestrorhynchus microlepis (Jardine 1841) -- (Taphorn 1992:104 [ref. 23654], Toledo-Piza & Menezes 1996:4 [ref. 22056], Menezes in Reis et al. 2003:232 [ref. 27061], López-Fernández & Winemiller 2003:195 [ref. 27386]). Current status: Synonym of Acestrorhynchus microlepis (Jardine 1841). Acestrorhynchidae: Acestrorhynchinae. Habitat: freshwater.