Squaliforma Isbrücker [I. J. H.] & Michels [J. P.] in Isbrücker et al. 2001:22 Fem. Hypostomus horridus Kner 1854. Type by original designation. •Synonym of Hypostomus Lacepède 1803 -- (Armbruster 2004:53, 60 [ref. 27644]). •Valid as Squaliforma Isbrücker & Michels 2001 -- (Weber in Reis et al. 2003:367 [ref. 27061], Ferraris 2007:297 [ref. 29155]). •Synonym of Aphanotorulus Isbrücker & Nijssen 1983 -- (Ray & Armbruster 2016:507 [ref. 34178]). Current status: Synonym of Aphanotorulus Isbrücker & Nijssen 1983. Loricariidae: Hypostominae.