tapanahoniensis, Hypostomus gymnorhynchus Boeseman [M.] 1969:129, Figs. 5 (b, d) [Beaufortia v. 16 (no. 215); ref. 7799] Upper Tapanahoni River, Suriname. Holotype: RMNH 25476. Paratypes: RMNH 25476 (5, with holotype), 25477 (11, now 9), 25478 (4 or 3); ZMA 110172 [ex RMNH 25477] (2). Type catalog: Nijssen et al. 1982:55 [ref. 19236], Ferraris 2007:261 [ref. 29155]. See description in Boeseman 1968:44 (not of Norman) [ref. 7872]. •Valid as Hypostomus tapanahoniensis Boeseman 1969 -- (Isbrücker 1980:35 [ref. 2303], Burgess 1989:432 [ref. 12860], Le Bail et al. 2000:254 [ref. 24549], Isbrücker 2001:28 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:363 [ref. 27061], Armbruster 2004:80 [ref. 27644], Ferraris 2007:260 [ref. 29155]). •Synonym of Hypostomus gymnorhynchus (Norman 1926) -- (Weber et al. 2012:209 [ref. 31999]). Current status: Synonym of Hypostomus gymnorhynchus (Norman 1926). Loricariidae: Hypostominae. Distribution: South America: Maroni River basin (Suriname) [if valid]. Habitat: freshwater.