holopteros, Cnesterodon Lucinda [P. H. F.], Litz [T.] & Recuero [R.] 2006:24, Figs. 2-4 [Zootaxa No. 1350; ref. 28858] Arroyo Catralancito, Río Cuareim drainage, Ruta 30, kilometer 156.4, 30°37.87'S, 56°22.75'W, Departmento Artigas, Uruguay. Holotype: MUNHINA 3218. Paratypes: MCP 39803 (2); MUNHINA 3219 (2); UNT 1946 (4, 2 c&s), 1964 (3). •Valid as Cnesterodon holopteros Lucinda, Litz & Recuero 2006 -- (Aguilera et al. 2009:40 [ref. 30366], Litz & Koerber 2014:31 [ref. 33622], Meyer 2015:46 [ref. 34698], Nión et al. 2016:43 [ref. 35565], Huber 2019:55 [ref. 36941], Loureiro et al. 2023:174 [ref. 40506]). Current status: Valid as Cnesterodon holopteros Lucinda, Litz & Recuero 2006. Poeciliidae: Poeciliinae. Distribution: South America: Uruguay River drainage (Uruguay). Habitat: freshwater.