26800 Theraps irregularis Günther, 1862 Cichlidae Cichlids Cichlasomatinae Cichliformes Teleostei Arroyo cichlid Central America: Atlantic slope of Mexico and Guatemala (Usumacinta, Sarstun and Dulce River basins). AMNH 3520 1912 Theraps irregularis GCRL 5536 1961 Cichlasoma irregulare AMNH 24540 1963 Theraps irregularis AMNH 24581 1963 Theraps irregularis AMNH 25380 1966 Theraps irregularis AMNH 25459 1966 Theraps irregularis AMNH 25463 1966 Theraps irregularis AMNH 25487 1966 Theraps irregularis AMNH 27859 1966 Theraps irregularis AMNH 27860 1966 Theraps irregularis AMNH 32056 1968 Theraps irregularis AMNH 31678 1971 Theraps irregularis AMNH 31685 1971 Theraps irregularis AMNH 31699 1971 Theraps irregularis AMNH 32134 1973 Theraps irregularis AMNH 32151 1973 Theraps irregularis AMNH 32245 1973 Theraps irregularis AMNH 32869 1974 Theraps irregularis AMNH 32893 1974 Theraps irregularis AMNH 222353 1979 Theraps irregulare