Scleronema Eigenmann [C. H.] 1917:691 Neut. Scleronema operculatum Eigenmann 1917. Type by original designation (also monotypic). •Valid as Scleronema Eigenmann 1917 -- (Burgess 1989:321 [ref. 12860], de Pinna 1989:31 [ref. 12630], Malabarba 1989:145 [ref. 14217], Arratia 1990:400 [ref. 16581], Arratia 1998:366 [ref. 23661], de Pinna 1998:300 [ref. 23847], de Pinna & Wosiacki in Reis et al. 2003:278 [ref. 27061], Ferraris 2007:413 [ref. 29155], Sarmento-Soares et al. 2011:268 [ref. 31385], Datovo et al. 2012:40 [ref. 31994], Lezuma et al. 2012:60 [ref. 32020], Fernández et al. 2015:14 [ref. 35041], Bertaco et al. 2016:421 [ref. 34561], Ferrer & Malabarba 2020:5 [ref. 37587], Costa et al. 2022:92 [ref. 39059], Bockmann et al. 2023:1 [ref. 40227]). Current status: Valid as Scleronema Eigenmann 1917. Trichomycteridae: Trichomycterinae.