caucanus, Ancistrus Fowler [H. W.] 1943:253, Figs. 40-43 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 95; ref. 1443] Sonsón, Río Cauca basin, Colombia. Holotype: ANSP 70516. Type catalog: Böhlke 1984:122 [ref. 13621], Ferraris 2007:219 [ref. 29155]. •Valid as Ancistrus caucanus Fowler 1943 -- (Isbrücker 1980:67 [ref. 2303], Burgess 1989:436 [ref. 12860], Isbrücker 2001:25 [ref. 25653], Isbrücker 2002:12 [ref. 27178], Fisch-Muller in Reis et al. 2003:374 [ref. 27061], Ferraris 2007:219 [ref. 29155], Taphorn et al. 2013:346 [ref. 32678], DoNascimiento et al. 2017:83 [ref. 35633]). Current status: Valid as Ancistrus caucanus Fowler 1943. Loricariidae: Hypostominae. Distribution: Magdalena River basin, Colombia. Habitat: freshwater.