Please look in Eschmeyer's Catalog of Fishes for authorships of sections, Families of Fishes (all), and related information.

Species related to Hypostomus gymnorhynchus: [ 3 ] records

gymnorhynchus, Plecostomus Norman [J. R.] 1926:95 [Annals and Magazine of Natural History (Series 9) v. 18 (no. 103); ref. 15602] Iponcin Creek, into Approuague River, French Guiana. Holotype (unique): BMNH 1926.3.2.745. Type catalog: Ferraris 2007:254 [ref. 29155]. •Valid as Hypostomus gymnorhynchus (Norman 1926) -- (Isbrücker 1980:24 [ref. 2303], Burgess 1989:431 [ref. 12860], Le Bail et al. 2000:254 [ref. 24549], Isbrücker 2001:31 [ref. 25653], Isbrücker 2002:18 [ref. 27178], Weber in Reis et al. 2003:358 [ref. 27061], Armbruster 2004:79 [ref. 27644], Ferraris 2007:254 [ref. 29155], Weber et al. 2012:209, 211 [ref. 31999], Zawadzki et al. 2015:56 [ref. 33866], Zawadzki et al. 2017:571 [ref. 35666], Borstein et al. 2022:18 [ref. 39507]). Current status: Valid as Hypostomus gymnorhynchus (Norman 1926). Loricariidae: Hypostominae. Distribution: South America: Guianan coastal drainages, from Oyapock westward to Suriname basin (French Guiana and Suriname). Habitat: freshwater.

occidentalis, Hypostomus gymnorhynchus Boeseman [M.] 1968:47, Pl. 6 (figs. 1-4) [Zoologische Verhandelingen (Leiden) No. 99; ref. 7872] Suriname River near Brokopondo, Suriname. Holotype: RMNH 25520. Paratypes: RMNH 25479-80 (3, 1). Type catalog: Ferraris 2007:257 [ref. 29155]. •Valid as Hypostomus occidentalis Boeseman 1968 -- (Isbrücker 1980:29 [ref. 2303], Burgess 1989:432 [ref. 12860], Isbrücker 2001:28 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:361 [ref. 27061], Armbruster 2004:79 [ref. 27644], Ferraris 2007:257 [ref. 29155]). •Synonym of Hypostomus gymnorhynchus (Norman 1926) -- (Weber et al. 2012:215 [ref. 31999]). Current status: Synonym of Hypostomus gymnorhynchus (Norman 1926). Loricariidae: Hypostominae. Distribution: South America: Suriname River basin, Suriname [if valid.]. Habitat: freshwater.

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.