paucisquama, Austrolebias Ferrer [J.], Malabarba [L. R.] & Costa [W. J. E. M.] 2008:176, Figs. 1-3 [Neotropical Ichthyology v. 6 (no. 2); ref. 29705] São Sepé, temporary pool close to BR-290 highway (30°22'27"S, 53°33'42"W), rio Vacacaí drainage, rio Jacuí tributary, Rio Grande do Sul, Brazil. Holotype: MCP 41879. Paratypes: MCP 41880 (26, 3 c&s); UFRGS 9354 (3, c&s), 9355 (7); UFRJ 6522 (10, 2 c&s). •Valid as Austrolebias paucisquama Ferrer, Malabarba & Costa 2008 -- (Bertaco et al. 2016:424 [ref. 34561], Volcan et al. 2017:151 [ref. 35644], Loureiro et al. 2018:11 [ref. 36240]). •Valid as Matilebias paucisquama (Ferrer, Malabarba & Costa 2008) -- (Alonso et al. 2023:9 [ref. 40292]). Current status: Valid as Matilebias paucisquama (Ferrer, Malabarba & Costa 2008). Rivulidae: Cynolebiinae. Distribution: South America: Rio Vacacaí drainage, Laguna dos Patos drainage, southern Brazil. Habitat: freshwater.