''Hemipsilichthys'' is a genus of

catfish Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive ...

es belonging to the family

Loricariidae The Loricariidae is the largest family of catfish (order Siluriformes), with 92 genera and just over 680 species. Loricariids originate from freshwater habitats of Costa Rica, Panama, and tropical and subtropical South America. These fish are not ...

. These wide-mouthed freshwater catfishes are restricted to

southeast Brazil The Southeast Region of Brazil ( pt, Região Sudeste do Brasil; ) is composed of the states of Espírito Santo, Minas Gerais, Rio de Janeiro (state), Rio de Janeiro and São Paulo State, São Paulo. It is the richest region of the country, responsi ...

in the Paraíba do Sul, Perequê-Áçu and

Taquari Taquari is a municipality in the state of Rio Grande do Sul, Brazil. See also *List of municipalities in Rio Grande do Sul This is a list of the municipalities in the state of Rio Grande do Sul (RS), located in the South Region of Brazil. Rio G ...

river basins. ''Hemipsilichthys'', along with ''

Delturus ''Delturus'' is a genus of armored catfishes native to rivers in Southeast and Northeast Brazil. Species There are currently four recognized species in this genus: * '' Delturus angulicauda'' ( Steindachner, 1877) * '' Delturus brevis'' Reis & ...

'', form a clade (

Delturinae The Delturinae are a subfamily of catfishes (order Siluriformes) of the family Loricariidae, including two genera, ''Delturus'' and ''Hemipsilichthys''. This group is sister to all other loricariids except ''Lithogenes''. The geographical distrib ...

). 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''.

Species

There are currently three recognized species in this genus: Additional species were formerly placed in this genus, but these are now placed in '' Pareiorhaphis''. * '' Hemipsilichthys gobio'' ( Lütken, 1874) * '' Hemipsilichthys nimius'' Pereira,

Reis Reis may refer to : * Reis (surname), a Portuguese and German surname *Reis (military rank), an Ottoman military rank and obscure Lebanese/Syrian noble title Currency * Portuguese Indian rupia (subdivided into ''réis''), the currency of Portugu ...

, Souza & Lazzarotto, 2003 * '' Hemipsilichthys papillatus'' Pereira, Oliveira & Oyakawa, 2000

References

Loricariidae Fish of South America Catfish genera Taxa named by Rosa Smith Eigenmann Taxa named by Carl H. Eigenmann Freshwater fish genera {{Loricariidae-stub