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Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Siluriformes
Family: Loricariidae
Subfamily: Delturinae
Genus: Hemipsilichthys
Eigenmann & Eigenmann, 1889
Type species
Xenomystus gobio
Lütken 1874[1]

Upsilodus Miranda Ribeiro 1924

Hemipsilichthys is a genus of catfishes belonging to the family Loricariidae. These wide-mouthed freshwater catfishes are restricted to southeast Brazil in the Paraíba do Sul, Perequê-Áçu and Taquari river basins. Hemipsilichthys, along with Delturus, form a clade (Delturinae). In these two genera, members have a ridge behind their dorsal fin and an adipose fin membrane. However, in Hemipsilichthys, the dorsal fin membrane and most anterior plate of the adipose fin do not touch, while they do in Delturus.[2]


There are currently three recognized species in this genus: [3] Additional species were formerly placed in this genus, but these are now placed in Pareiorhaphis.


  1. ^ Eschmeyer, W. N., ed. (23 July 2014). "Hemipsilichthys Eigenmann & Eigenmann 1889". Catalog of Fishes. California Academy of Sciences – Institute for Biodiversity Science and Sustainability. Retrieved 9 August 2014. 
  2. ^ Armbruster, Jonathan W. "Upsilodus". Retrieved 2007-05-07. 
  3. ^ Froese, Rainer, and Daniel Pauly, eds. (2011). Species of Hemipsilichthys in FishBase. December 2011 version.