Motagua River
Thorichthys is a genus of cichlids. It is found in Atlantic slope of Middle America from Chachalacas River area in Mexico, south to the Motagua River 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" do not exceed , making them popular aquarium fish. They are most closely related to Salvin's cichlid of the genus "Trichromis".