planiventris, Steindachnerina Vari [R. P.] & Williams Vari [A.] 1989:479, Figs. 1C, 11 [Proceedings of the Biological Society of Washington v. 102 (no. 2); ref. 12508] Near mouth of Rio Machado, 8°03'S, 62°53'W, Rondônia, Brazil. Holotype: MZUSP 38587. Paratypes: MZUSP 38588-90 (17, 5, 18); USNM 267986 (18), 267987 (8, 2 c&s), 267989 (18). Non-types: AMNH (1 lot, 1); BMNH (1 lot, 13); MZUSP (4 lots, 29); NMW (10 lots, 53); USNM (5 lots, 54). Type catalog: Vari & Howe 1991:40 [ref. 19022], Oyakawa 1996:497 [ref. 23140]. •Valid as Steindachnerina planiventris Vari & Williams Vari 1989 -- (Vari 1991:59 [ref. 19019], Pavanelli & Britski 1999:216 [ref. 24224], Vari in Reis et al. 2003:61 [ref. 27061], Netto-Ferreira & Vari 2011:527 [ref. 31707], Barriga Salazar 2014:105 [ref. 35745], Sarmiento et al. 2014:186 [ref. 35004], Meza-Vargas et al. 2021:15 [ref. 39298], Taphorn et al. 2022:23 [ref. 41297]). Current status: Valid as Steindachnerina planiventris Vari & Williams Vari 1989. Curimatidae. Distribution: South America: Negro, Blanco, and middle portions of Amazon River basin (Bolivia, Brazil, Ecuador, Guyana and Peru). Habitat: freshwater.