Trichogenes

Trichogenes is a genus of freshwater ray-finned fish belonging to the family Trichomycteridae, the pencil and parasitic catfishes.^[2] It is currently the only genus in the monogeneric subfamily Trichogeninae. These catfishes are found in South America.

Trichogenes
Trichogenes claviger
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Siluriformes
Family:	Trichomycteridae
Subfamily:	Trichogeninae Isbrücker, 1986[1]
Genus:	Trichogenes Britski & Ortega, 1983[2]
Type species
Trichogenes longipinnis Britski & Ortega, 1983[3]

A third species, T. beagle, was described in 2020 from archival material of unknown origin. The occurrence of the new species in the wild is unknown.^[4]

Etymology

The name Trichogenes is composed of the words "Tricho", referring to its family, the Trichomycteridae, and "genes", referring to the genus Helogenes due to its superficial resemblance to the latter.^[3]

Distribution

Trichogenes species are endemic to southeastern Brazil.^[5]

Species

Trichogenes contains the following valid species:^[5]

• Trichogenes beagle de Pinna, V. Reis & Britski, 2020
• Trichogenes claviger de Pinna, Helmer, Britski & Nunes, 2010
• Trichogenes longipinnis Britski & Ortega, 1983