tenuis, Hypostomus Boeseman [M.] 1968:64, Pl. 14 (figs. 3-4) [Zoologische Verhandelingen (Leiden) No. 99; ref. 7872] Near Paramaribo, Suriname [in error]. Holotype (unique): RMNH 16198. Type catalog: Ferraris 2007:298 [ref. 29155]. Weber in Reis et al. 2003 considers the original locality to be in error. •Valid as Squaliforma tenuis (Boeseman 1968) -- (Isbrücker et al. 2001:22 [ref. 25649], Isbrücker 2001:28, 32 [ref. 25653], Isbrücker 2002:29 [ref. 27178], Weber in Reis et al. 2003:367 [ref. 27061], Ferraris 2007:298 [ref. 29155], Weber et al. 2012:219 [ref. 31999] with locality remarks). •Valid as Hypostomus tenuis Boeseman 1968 -- (Isbrücker 1980:35 [ref. 2303], Burgess 1989:432 [ref. 12860], Armbruster 2004:80 [ref. 27644], Ray & Armbruster 2016:505 [ref. 34178]). Current status: Valid as Hypostomus tenuis Boeseman 1968. Loricariidae: Hypostominae. Distribution: Not Suriname. Habitat: freshwater.