Trichomycterus, Valenciennes in Humboldt, 1832

Ota, Renata Rúbia, Deprá, Gabriel de Carvalho, Graça, Weferson Júnio da & Pavanelli, Carla Simone, 2018, Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated, Neotropical Ichthyology 16 (2), pp. 1-111 : 89

Trichomycterus

1. Caudal fin sometimes spotted and with no light-beige transverse bar ........................................................... T. davisi

1’. Caudal fin mostly hyaline, with a light-beige transverse bar ........................................................................ T. diabolus