longipinnis, Metynnis Zarske [A.] & Géry [J.] 2008:175, Figs. 1-2 [Vertebrate Zoology v. 58 (no. 2); ref. 29917] Mündung rio Casiquiare -- rio Negro, Venezuela. Holotype and paratype: CAS-SU 54688 (2). The holotype is not identified because of similar size to the paratype. •Valid as Metynnis longipinnis Zarske & Géry 2008 -- (Ota et al. 2016:11 [ref. 35002], Ota et al. 2024:408 [ref. 40817]). Current status: Valid as Metynnis longipinnis Zarske & Géry 2008. Serrasalmidae: Serrasalminae. Distribution: South America: Rio Negro drainage, Venezuela and Brazil. Habitat: freshwater.