paranensis, Oligosarcus Menezes [N. A.] & Géry [J.] 1983:572, Fig. 3 [Revue Suisse de Zoologie v. 90 (no. 3); ref. 8307] Represa de Salesópolis (Tietê River system), São Paulo State, Brazil. Holotype: MZUSP 25721. Paratypes: MHNG 2098.2-7 (6); MNHN 1982-1111 and 1112 (1, 1); MZUSP 4713-14 (2), 1450 (1), 4685 (1), 4734 (1), 21085 (1), 21747 (1), 21768-71 (4), 21774-81 (8), 21796-97 (2), 21799-803 (5), 21805 (1), 21808-11 (4), 25722-85 (64), 25786 (1), 25787-803 (17), 25804-05 (1, 1), 25806-32 (27), 25833-40 (8), 36213 (1); USNM 228081-82 (5, 5). Type catalog: Vari & Howe 1991:32 [ref. 19022], Oyakawa 1996:487-488 [ref. 23140]. •Valid as Oligosarcus paranensis Menezes & Géry 1983 -- (Menezes 1987:27 [ref. 20060], Gómez & Chebez 1996:48 [ref. 23791], Miquelarena et al. 1997:68 [ref. 23469], Casatti et al. 2001:5 [ref. 25929], Menezes in Reis et al. 2003:152 [ref. 27061], López et al. 2003:29 [ref. 27366], Menni 2004:74 [ref. 28131], Ribeiro et al. 2007:52 [ref. 29321], Almirón et al. 2015:589 [ref. 33673], Ribeiro & Menezes 2015:78 [ref. 33768], Menezes & Ribeiro 2015:545 [ref. 33973], Mirande & Koerber 2015:25 [ref. 35117], Koerber et al. 2017:38 [ref. 35267], Azevedo-Santos et al. 2019:5 [ref. 36506], Wendt et al. 2019:5 [ref. 36952], Azevedo-Santos et al. 2020:5 [ref. 39606]. Reis et al. 2020:460 [ref. 38364], Brandão et al. 2023:99 [ref. 40464], Menezes & Camelier 2024:244 [ref. 40817]). Current status: Valid as Oligosarcus paranensis Menezes & Géry 1983. Acestrorhamphidae: Acestrorhamphinae. Distribution: South America: upper Paraná River basin (Argentina, Brazil and Paraguay). Habitat: freshwater.