Distribution: Global: Middle America; from southern Costa Rica to western Panama, Pacific drainages; Costa Rica: Co (Pacific), 20– 400 m.a.s.l., Sec, Pot. Occurrence and conservation status: Nat, VU. References: Bussing (1966: 237, as Cichlasoma altifrons —synonym; listed, information on distribution), Bussing (1987: 190, as Cichlasoma altifrons —synonym; 1998: 322, as Astatheros altifrons —synonym; brief description, including illustrations and an identification key, information on distribution, with a map, and ecology) and Angulo et al. (2013: 1004, as Amphilophus altifrons —synonym; listed, including taxonomic information and distributional data).