juvens, Pterygoplichthys Eigenmann [C. H.] & Kennedy [C. H.] 1903:504 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 55; ref. 1260] Asuncion, Río Paraguay, Paraguay. Holotype (unique): CAS 59784 [ex IU 9876]. Type catalog: Ferraris 2007:291 [ref. 29155]. •Valid as Pterygoplichthys juvens Eigenmann & Kennedy 1903 -- (Isbrücker 1980:41 [ref. 2303], Burgess 1989:433 [ref. 12860]). •Synonym of Pterygoplichthys anisitsi Eigenmann & Kennedy 1903 -- (López & Miquelarena 1991:39 [ref. 23548], Weber in Reis et al. 2003:365 [ref. 27061]). •Synonym of Liposarcus ambrosettii Holmberg 1893 -- (Isbrücker 2001:32 [ref. 25653], Isbrücker 2002:28 [ref. 27178]). •Synonym of Pterygoplichthys ambrosettii (Holmberg 1893) -- (Ferraris 2007:291 [ref. 29155], Litz & Koerber 2014:26 [ref. 33622], Mirande & Koerber 2015:43 [ref. 35117], Koerber et al. 2017:63 [ref. 35267]). Current status: Synonym of Pterygoplichthys ambrosettii (Holmberg 1893). Loricariidae: Hypostominae. Habitat: freshwater.