Aphanotorulus Isbrücker [I. J. H.] & Nijssen [H.] 1983:105 Masc. Aphanotorulus frankei Isbrücker & Nijssen 1983. Type by original designation (also monotypic). •Synonym of Hypostomus Lacepède 1803 -- (Armbruster 2004:53, 60 [ref. 27644] dated 1982). •Valid as Aphanotorulus Isbrücker & Nijssen 1983 -- (Burgess 1989:430 [ref. 12860], Armbruster & Page 1996:381 [ref. 22151], Armbruster 1998:253 [ref. 23319], Montoya-Burgos et al. 1998:367 [ref. 23850], Isbrücker 2002:12 [ref. 27178], Weber in Reis et al. 2003:351 [ref. 27061], Ferraris 2007:225 [ref. 29155], Weber et al. 2012:219 [ref. 31999], Ray & Armbruster 2016:507 [ref. 34178], Oliveira et al. 2017:[1] [ref. 35225]). Current status: Valid as Aphanotorulus Isbrücker & Nijssen 1983. Loricariidae: Hypostominae.