Genycharax Eigenmann, 1912

Mirande, Juan Marcos, 2010, Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy, Neotropical Ichthyology 8 (3), pp. 385-568 : 545

Genycharax Eigenmann, 1912

The only species described for this genus, Genycharax tarpon Eigenmann , has a general appearance of an Astyanax , but with a clupeoid mouth and elongated and curved teeth. This genus was related with Astyanax and some Characinae by Géry (1977). According to the illustrations of Géry (1977) this species lacks a supraorbital bone, and it would not be included either in the subfamilies Acestrorhynchinae , Agoniatinae , Bryconinae , Cynodontinae , Iguanodectinae or Salmininae , nor in the Bryconops clade. Although this species shares some details of general appearance and the presence of unicuspidate teeth with the Characinae , such a proposed relationship would be speculative and it is maintained herein as incertae sedis.