semiocellatus, Spectrolebias Costa [W. J. E. M.] & Nielsen [D. T. B.] 1997:259, Figs. 1-2 [Ichthyological Exploration of Freshwaters v. 7 (no. 3); ref. 22744] Rio Araguaia Basin, Brazil. Holotype: MZUSP 50654. Paratypes: MZUSP 50655 (3); UFRJ 3632 (6), 3633 (5, c&s). •Valid as Simpsonichthys semiocellatus (Costa & Nielsen 1997) -- (Costa 2006:17 [ref. 28620], Costa 2007:52 [ref. 29445], Costa & Brasil 2008:245 [ref. 29968]). •Valid as Spectrolebias semiocellatus Costa & Nielsen 1997 -- (Costa 1998:74 [ref. 23792], Costa & Le Bail 1999:1028 [ref. 24187], Lazara 2001:301 [ref. 25711], Costa et al. 2003:144 [ref. 26946], Costa in Reis et al. 2003:542 [ref. 27061], Nielsen 2013:81 [ref. 32696], Niesen & Brousseau 2013:116 [ref. 32794], Costa & Amorim 2018:365 [ref. 36019]). Current status: Valid as Spectrolebias semiocellatus Costa & Nielsen 1997. Rivulidae: Cynolebiinae. Distribution: Araguaia River basin, central Brazil. Habitat: freshwater.