aculeatus, Plecostomus Gronow [L. T.] in Gray 1854:158 [Catalogue of fish collected and described by Laurence Theodore Gronow; ref. 1911] Tropical America. No types known. Type catalog: Ferraris 2007:224 [ref. 29155]. Based on literature sources. •Synonym of Ancistrus temminckii (Valenciennes 1840) -- (Isbrücker 1980:73 [ref. 2303], Isbrücker 2001:31 [ref. 25653], Isbrücker 2002:25 [ref. 27178], Fisch-Muller in Reis et al. 2003:378 [ref. 27061], Ferraris 2007:224 [ref. 29155]). Current status: Synonym of Ancistrus temminckii (Valenciennes 1840). Loricariidae: Hypostominae. Habitat: freshwater.