IlyodonIlyodon is a genus of splitfins found in the Pacific slope river basins of Balsas, Tuxpan (Coahuayana), Purificación, Chacala (Marabasco), Armería and Ameca in western Mexico.SpeciesThere are currently five recognized species in this genus according to FishBase, but only I. furcidens and I. whitei are indisputably valid.Ilyodon cortesae Paulo-Maya & Trujillo-Jiménez, 2000 Ilyodon furcidens Ilyodon lennoni M. K. Meyer & W. Förster, 1983 Ilyodon whitei Ilyodon xantusi C. L. Hubbs & C. L. Turner, 1939