spinosus, Ancistrus Meek [S. E.] & Hildebrand [S. F.] 1916:252 [Field Museum of Natural History, Publications, Zoölogical Series v. 10 (no. 15); ref. 2962] Río Calobre, tributary of Río Bayano, Panama. Holotype: FMNH 8942. Paratypes: (1). Type catalog: Ibarra & Stewart 1987:8 [ref. 12367], Ferraris 2007:224 [ref. 29155]. •Valid as Ancistrus spinosus Meek & Hildebrand 1916 -- (Isbrücker 1980:72 [ref. 2303], 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]). Current status: Valid as Ancistrus spinosus Meek & Hildebrand 1916. Loricariidae: Hypostominae. Distribution: Pacific and Caribbean river drainages, eastern Panama. Habitat: freshwater.