Blackgullet cichlid (Thorichthys pasionis)
Blackgullet cichlid gets up to 17 cm long. Its range includes Rio Usumacinta affluents San Pedro and la Pasión. The species is also found in the basin of the rivers Chompán and Candelaria, all these rivers flowing to the gulf of México
In Aquariums and Zoos: rare in european aquariums