affinis, Heros Günther [A.] 1862:292 [Catalogue of the fishes in the British Museum v. 4; ref. 1969] Lake Petén [Petén Itza], Guatemala. Syntypes: BMNH 1864.1.26.83-86 (4). •Valid as Cichlasoma affine (Günther 1862) -- (Miller & Taylor 1984:937 [ref. 6809], Gamboa Pérez 1992:322 [ref. 38704], Conkel 1993:173 [ref. 22949], Nelson et al. 2004:151 [ref. 27807]). •Valid as Thorichthys affinis (Günther 1862) -- (Burgess 2000:54 [ref. 24818], Kullander in Reis et al. 2003:644 [ref. 27061], Miller 2006:376 [ref. 28615], Chakrabarty 2007:22 [ref. 29359], Allgayer 2010:27 [ref. 31541], Page et al. 2013:157 [ref. 32708], Barrientos et al. 2015:4 [ref. 37653], McMahan et al. 2015:227 [ref. 33920], Říčan et al. 2016:39 [ref. 34357], Del Moral-Flores et al. 2017:9 [ref. 35275], Barrientos et al. 2023:273 [ref. 41235], Page et al. 2023:137 [ref. 40505]). Current status: Valid as Thorichthys affinis (Günther 1862). Cichlidae: Cichlinae. Distribution: Central America: Atlantic Slope (Belize, Guatemala and Honduras). Habitat: freshwater.