distolothrix, Scoloplax Schaefer [S. A.], Weitzman [S. H.] & Britski [H. A.] 1989:191, Figs. 2, 5, 6, 11 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 141; ref. 13514] Small tributary of Rio Batovi, upper Rio Xingu, Mato Grosso State, Brazil, 12°58'S, 53°37'W. Holotype: MZUSP 39065. Paratypes: ANSP 162803 (10); MZUSP 39066 (31); USNM 300622 (24) 300623 (2, c&s). Type catalog: Ferraris & Vari 1992:39 [ref. 19771], Ferraris 2007:367 [ref. 29155] •Valid as Scoloplax distolothrix Schaefer, Weitzman & Britski 1989 -- (Schaefer 1990:207 [ref. 16640], Burgess & Finley 1996:170 [ref. 22901], de Pinna 1998:302 [ref. 23847], Costa & Le Bail 1999:1028 [ref. 24187], Schaefer in Reis et al. 2003:311 [ref. 27061], Ferraris 2007:367 [ref. 29155], Rocha et al. 2008:326 [ref. 29838], Rocha et al. 2012:675 [ref. 32361], Koerber et al. 2017:67 [ref. 35267]). Current status: Valid as Scoloplax distolothrix Schaefer, Weitzman & Britski 1989. Scoloplacidae. Distribution: Tocantins/Araguaia, Xingu, and Paraguay River basins: Brazil and Paraguay. Habitat: freshwater.