Lago Coatepeque Convict Cichlid

Amatitlania coatepeque has a short, deep body with a maximum standard length of 9.1 cm (3.6 in). There are 17 to 19 spines and 7 to 9 soft rays in the dorsal fin, while the anal fin contains 8 to 10 spines and 6 or 7 soft rays. The body has vertical bars along the flanks and, in this species, the fourth bar is in a Y-shape, as the 4th and 5th bars merge on the lower side. Most species in the genus Amatitlania have 5 or fewer scales in the lateral line, this species has at least 5.

Amatitlania coatepeque is restricted to Lake Coatepeque in El Salavdor where it lives among rocks in clear water.

== References ==

Amatitlania coatepeque is classified within the genus Amatitlania, this name means "of Amatitlan", i.e. Lake Amatitlán, a caldera lake in Guatemala which is the type locality of A. nigrofasciatia. The specific name, coatepeque, is the name of the only known location for this species, the caldera lake of Lake Coatepeque in EL Salvador. The name of this lake is thought to be Nahuatl, combining, coátl, meaning "snake", and tepétl, which means "mountain", giving a toponym that translates as "mountain of the snake".