helleri, Heros Steindachner [F.] 1864:64 [8], Pl. 4 (fig. 1) [Denkschriften der Kaiserlichen Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Classe. v. 23 (no. 2); ref. 13936] Teapa River, Tabasco, Mexico. Syntypes: NMW 17344-49 (1, 1, 1, 1, 1, 1). On p. 8 of separate. •Valid as Cichlasoma helleri (Steindachner 1864) -- (Miller & Taylor 1984:937 [ref. 6809], Conkel 1993:177 [ref. 22949], Espinosa Pérez et al. 1993:67 [ref. 22290], Nelson et al. 2004:152 [ref. 27807]). •Valid as Thorichthys helleri (Steindachner 1864) -- (Burgess 2000:54 [ref. 24818], Kullander in Reis et al. 2003:644 [ref. 27061], Miller 2006:377 [ref. 28615], 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. 2022:241 [ref. 39506], Barrientos et al. 2023:273 [ref. 41235], Page et al. 2023:137 [ref. 40505], Quintana 2024:7 [ref. 41186]). Current status: Valid as Thorichthys helleri (Steindachner 1864). Cichlidae: Cichlinae. Distribution: Southern North America and Central America: Atlantic slope of southern Mexico, Belize and northern Guatemala. IUCN (2019): Data Deficient. Habitat: freshwater.