Species and geographic distribution of Mylossoma Eigenmann & Kennedy, 1903 from Ecuador

A review of the species of the genus Mylossoma Eigenmann & Kennedy, 1903 found in the Ecuadorian Cis-Andean region was conducted. Two species were recognized: M. albiscopum (Cope, 1872) from the Putumayo, Napo, and Tigre river basins and M. aureum (Agassiz, 1829) from the Napo river basin. A map of geographical distribution and radiographs for both species are provided. Historical records of M. duriventre (Cuvier, 1818) were not confirmed in this geographical distribution.