scopularius, Plecostomus Cope [E. D.] 1871:55 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 19538] Amazon River above mouth of Rio Negro. Holotype (unique): ANSP 8081. Type catalog: Böhlke 1984:124 [ref. 13621], Ferraris 2007:298 [ref. 29155] with a lectotype designated by Fowler 1915:233. Also appeared in Cope 1872:286, Pl. 16 [ref. 921]. •Valid as Hypostomus scopularius (Cope 1871) -- (Isbrücker 1980:34 [ref. 2303], Burgess 1989:432 [ref. 12860], Armbruster 2004:80 [ref. 27644] as scopularus). •Valid as Squaliforma scopularia (Cope 1871) -- (Isbrücker et al. 2001:22 [ref. 25649], Isbrücker 2001:31, 32 [ref. 25653], Isbrücker 2002:29 [ref. 27178], Weber in Reis et al. 2003:367 [ref. 27061], Ferraris 2007:298 [ref. 29155]). •Synonym of Aphanotorulus horridus (Kner 1854) -- (Ray & Armbruster 2016:519 [ref. 34178]). Current status: Synonym of Aphanotorulus horridus (Kner 1854). Loricariidae: Hypostominae. Habitat: freshwater.