septentrionalis, Cnesterodon Rosa [R. S.] & Costa [W. J. E. M.] 1993:706, Figs. 13, 18 [Copeia 1993 (no. 3); ref. 20993] Swamp near the Córrego do Rancho fountainhead, Município de Alto Araguaia, Mato Grosso, Brazil. Holotype: MZUSP 41380. Paratypes: MZUSP 41370 (19, 2 c&s), 41371 (3), 41381-82 (4, 8). •Valid as Cnesterodon septentrionalis Rosa & Costa 1993 -- (Lucinda & Garavello 2001:123 [ref. 25093], Meyer & Etzel 2001:248 [ref. 25973], Lucinda in Reis et al. 2003:557 [ref. 27061], Lucinda 2005:265 [ref. 28272], Lucinda et al. 2006:27 [ref. 28858], Lucinda & Reis 2005:47 [ref. 29205], Aguilera et al. 2009:41 [ref. 30366], Meyer 2015:51 [ref. 34698], Huber 2019:56 [ref. 36941]). Current status: Valid as Cnesterodon septentrionalis Rosa & Costa 1993. Poeciliidae: Poeciliinae. Distribution: Upper Araguaia River basin, Mato Grosso, Brazil. Habitat: freshwater.