Trichogenes is a genus of pencil catfishes.

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.

[2] 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.

[1] Trichogenes species are endemic to Brazil.