crassicauda, Hypostomus Boeseman [M.] 1968:42, Pl. 17 (figs. 1-2) [Zoologische Verhandelingen (Leiden) No. 99; ref. 7872] Sipaliwini River, Suriname. Holotype: RMNH 25489 (212 mm TL specimen of 5). Paratypes: RMNH 25489 (4, with holotype). Type catalog: Ferraris 2007:253 [ref. 29155]. •Valid as Hypostomus crassicauda Boeseman 1968 -- (Isbrücker 1980:22 [ref. 2303], Burgess 1989:431 [ref. 12860], Isbrücker 2001:28 [ref. 25653], Isbrücker 2002:18 [ref. 27178], Weber in Reis et al. 2003:357 [ref. 27061], Armbruster 2004:79 [ref. 27644], Ferraris 2007:253 [ref. 29155], Weber et al. 2012:211 [ref. 31999], Zawadzki et al. 2017:571 [ref. 35666]). Current status: Valid as Hypostomus crassicauda Boeseman 1968. Loricariidae: Hypostominae. Distribution: Upper Sipaliwini River basin, Suriname. Habitat: freshwater.