toba, Austrolebias Calviño [P. A.] 2006:183, Figs. 1-4 [Revista del Museo Argentino de Ciencias Naturales "Bernardino Rivadavia", n.s. v. 7 (no. 2); ref. 28679] Temporary ponds, lower río Bermejo basin, Chaco Province, Argentina. Holotype: MLP 9652. Paratypes: BMNH 2005.10.27.1-5 (5); MACN 8893 (4); MLP 9653 (18, now 9). Plus non-type material. Type catalog: Miquelarena & Nadalin 2014:19 [ref. 33466]. •Valid as Austrolebias toba Calviño 2006 -- (Koerber 2011:7 [ref. 31122], Koerber 2014:12 [ref. 33621], Mirande & Koerber 2015:51 [ref. 35117], Calviño et al. 2016:10 [ref. 34699], Volcan et al. 2017:387 [ref. 35260], Loureiro et al. 2018:11 [ref. 36240]). •Valid as Matilebias toba (Calviño 2006) -- (Alonso et al. 2023:9 [ref. 40292], Koerber et al. 2023:4 [ref. 40368]). Current status: Valid as Matilebias toba (Calviño 2006). Rivulidae: Cynolebiinae. Distribution: South America: lower Bermejo River basin (Chaco, Argentina). Habitat: freshwater.