pasionis, Cichlasoma Rivas [L. R.] 1962:148, Fig. 1 [Quarterly Journal of the Florida Academy of Sciences v. 25 (no. 2); ref. 20760] Río de la Pasión at Sayaxche, Río Usumacinta drainage, Dept. El Petén, Guatemala. Holotype: USNM 203156 [ex UMIM 4872]. Paratypes: UMIM 4017 (7). Type information: Rivas 1969:203 [ref. 25092]. •Valid as Cichlasoma pasionis Rivas 1962 -- (Miller & Taylor 1984:938 [ref. 6809], Conkel 1993:179 [ref. 22949], Espinosa Pérez et al. 1993:69 [ref. 22290], Nelson et al. 2004:152 [ref. 27807]). •Valid as Thorichthys pasionis (Rivas 1962) -- (Burgess 2000:54 [ref. 24818], Kullander in Reis et al. 2003:644 [ref. 27061], Miller 2006:378 [ref. 28615], Chakrabarty 2007:22 [ref. 29359], Page et al. 2013:157 [ref. 32708], McMahan et al. 2015:227 [ref. 33920], Říčan et al. 2016:39 [ref. 34357], Del Moral-Flores et al. 2017:9 [ref. 35275], Gómez-Martínez et al. 2022:242 [ref. 39506], Barrientos et al. 2023:273 [ref. 41235], Page et al. 2023:138 [ref. 40505], Quintana 2024:7 [ref. 41186]). Current status: Valid as Thorichthys pasionis (Rivas 1962). Cichlidae: Cichlinae. Distribution: Southern North America and Central America: Atlantic Slope (Mexico and Guatemala). Habitat: freshwater.