mento, Heros Vaillant [L. L.] & Pellegrin [J.] 1902:88 [4] [Bulletin du Muséum National d'Histoire Naturelle (Série 1) v. 8 (no. 2); ref. 14896] Río Negro, southern Mexico. Syntypes: MNHN 1894-0283 to 0286 (4), UMMZ 203326 [ex MNHN 1894-0283 to 0286] (1). Type catalog: Blanc 1962:214 [ref. 20868]. On p. 4 of separate. •Questionably valid as Nandopsis mento (Vaillant & Pellegrin 1902) -- (Burgess 2000:50 [ref. 24818]). •Synonym of Cichlasoma istlanum (Jordan & Snyder 1899) -- (Conkel 1993:121 [ref. 22949], Kullander in Reis et al. 2003:623 [ref. 27061] as incertae sedis in 'Cichlasoma'). Current status: Synonym of Amphilophus istlanus (Jordan & Snyder 1899). Cichlidae: Cichlinae. Habitat: freshwater.