Thorichthys is a genus of cichlids. It is found in Atlantic slope of Middle America from Río Chachalacas area in Mexico, south to the Río Motagua drainage in Guatemala and Honduras.They have somewhat pointy heads and stripes down their body, and tend to inhabit slow-moving or standing water. The best-known species is Thorichthys meeki, the firemouth cichlid. Members of Thorichthys rarely exceed 6 inches (15 cm), making them popular aquarium fish.