puriventris, Trichomycterus Barbosa [M. A.] & Costa [W. J. E. M.] 2012:156, Figs 1-3 [Vertebrate Zoology v. 62 (no. 2); ref. 32045] Rio Santissimo, tributary of Rio Grande, Rio Paraíba do Sul basin, Águas Frias, 2 km north of Santa Maria Madalena, 21°56'48.8"S, 41°58'03.6"W, Estado do Rio de Janeiro, Brazil, elevation 589 meters. Holotype: UFRJ 6005. Paratypes: UFRJ 5397 (23), 5398 (28), 5405 (6 c&s), 5644 (1), 5677 (1) •Valid as Trichomycterus puriventris Barbosa & Costa 2012 -- (Costa et al. 2022:512 [ref. 39820] in subgenus Psammocambeva, Vilardo et al. 2023:5 [ref. 40643]). Current status: Valid as Trichomycterus puriventris Barbosa & Costa 2012. Trichomycteridae: Trichomycterinae. Distribution: South America: Rio Grande drainage, Rio Paraiba do Sul basin (Rio de Janeiro State, Brazil). Habitat: freshwater.