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Karsten Schönherr (4) Raphael Covain (1)

There is very little to choose between this species and Hypostomus surinamensis and in 2012 Weber et al. declared H. surinamensis as a synonym of H. gymnorhynchus. This has not been excepted in some quarters. Dark spots adorn this species and get somewhat smaller in the head. The tips of the caudal fins extensions are black. The Hypostomus genus has 7 rays to the dorsal fin whereas the similar looking Pterygoplichthys species have 10 dorsal fin rays. Aquarium Care: As with most of this genus, will do well in a larger aquarium, although this is one of the smaller species in the genera, and the aquarium well filtered. Water parameters can be quite diverse for this genera. Diet: Omnivore with a liking for green, tablet and frozen foods. Etymology: The specific name gymnorhynchus: Bare-snouted, from gymnós, bare or naked, and rhýnchos, snout, referring to a “rather broad naked margin” on snout.

None

Plecostomus gymnorhynchus, H. surinamensis, H. occidentalis, H. tapanahoniensis.

Loricariidae

South America: Guianan coastal drainages, from Oyapock westward to the Maroni basin, French Guiana. Type locality: Iponcin Creek, into Approuague River, French Guiana.

17.0cm. (6¾ins)

24-28°c (75-83°f.)

6.0-7.5.

Ballen, G.A. 2023. Hypostomus gymnorhynchus. The IUCN Red List of Threatened Species 2023.
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2015. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2016 ).
Mol, H.A. Jan, The Freshwater Fishes of Suriname. BRILL, Leiden Boston, 2012. 889 p.
Seidel, I. 2008. Back to Nature guide to L-catfishes, Ettlingen, Germany 208 p.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.