similis, Simpsonichthys Costa [W. J. E. M.] & Hellner [S.] 1999:90, Fig. 1 [Revue française d'Aquariologie Herpétologie v. 25 (no. 3/4) [for 1998]; ref. 23864] Temporary pool close to Urucuia, road to São Romão, rio Urucuia basins, Estado de Minas Gerais, Brazil [ca. 16°05'S, 454°45'W, elevation about 500 m]. Holotype: MZUSP 51834. Paratypes: MZUSP 51835 (1); UFRJ 4146 (1), 4147 (5, c&s), 4148 (1). •Valid as Simpsoichthys similis Costa & Hellner 1999 -- (Lazara 2001:298 [ref. 25711], Costa in Reis et al. 2003:542 [ref. 27061], Costa & Brasil 2004:2 [ref. 28012], Costa 2005:63 [ref. 28575], Costa 2006:17 [ref. 28620], Costa 2007:70 [ref. 29445]). •Valid as Hypsolebias similis (Costa & Hellner 1999) -- (based on generic placement in Costa 2011 [ref. 31654]). Current status: Valid as Hypsolebias similis (Costa & Hellner 1999). Rivulidae: Cynolebiinae. Distribution: São Francisco River basin, Brazil. Habitat: freshwater.