travassosi, Pygidium Miranda Ribeiro [P. de] 1949:145, Fig. 2 [Revista Brasileira de Biologia v. 9 (no. 2); ref. 13023] Rio das Pedras, Fazenda Penedo, Agulhas Negras, Estado do Rio de Janeiro, Brazil. Holotype (unique): MNRJ 5424. Type catalog: Miranda Ribeiro 1954:12 [ref. 21988], Ferraris 2007:414 [ref. 29155]. •Synonym of Trichomycterus alternatus (Eigenmann 1917) -- (de Pinna & Wosiacki in Reis et al. 2003:279 [ref. 27061], Ferraris 2007:414 [ref. 29155], Barbosa & Costa 2008:184 [ref. 29961], Barbosa & Costa 2010:121 [ref. 30782], Barbosa & Costa 2011:308 [ref. 31672], Barbosa & Costa 2012:79 [ref. 31901], Reis & de Pinna 2022:15 [ref. 39360]). •Valid as Trichomycterus travassosi (Miranda Ribeiro 1949) -- (Bizerril 1994:623 [ref. 22673], Bockmann et al. 2004:227 [ref. 27855], Costa 2021:176 [ref. 38391], Costa et al. 2022:513 [ref. 39820] in subgenus Psammocambeva, Vilardo et al. 2023:5 [ref. 40643]). Current status: Valid as Trichomycterus travassosi (Miranda Ribeiro 1949). Trichomycteridae: Trichomycterinae. Distribution: South America: Rio das Pedras drainage, Paraíba do Sul basin (Rio de Janeiro State, Brazil). Habitat: freshwater.