xantusi, Balsadichthys Hubbs [C. L.] & Turner [C. L.] 1939:63, Pl. 4 (fig. 3) [Miscellaneous Publications, Museum of Zoology, University of Michigan No. 42; ref. 2265] Quiet pools of a small tributary of Río Colima, Hacienda Los Limones, Colima, Mexico. Holotype: UMMZ 105997. Paratypes: UMMZ 169762 (61), 160777 (26); USNM 92901-03 (1, 6, 14). •Valid as Ilyodon xantusi (Hubbs & Turner 1939) -- (Espinosa Pérez et al. 1993:42 [ref. 22290], Nelson et al. 2004:107 [ref. 27807]). •Synonym of Ilyodon furcidens (Jordan & Gilbert 1882) -- (Beltrán-López et al. 2017:13 [ref. 35506], Huber 2019:31 [ref. 36941], Lyons et al. 2019:138 [ref. 37104]). Current status: Synonym of Ilyodon furcidens (Jordan & Gilbert 1882). Goodeidae: Goodeinae. Habitat: freshwater.