Pam Chin has been replying to cichlid questions for over twenty years. Highly respected and experienced aquarist, Pam has visited cichlid habitats around the world, and bred in her's and her husband Gary fish house hundreds of cichlid species. Besides her job, she still devotes time to help any person with a cichlid question!
Hubbs, Carl Leavitt. 1938. "Fishes from the caves of Yucatan". Carnegie Institute Washington Publications. pp. 261-295 (crc01411).
Hubbs, Carl Leavitt. 1936. "XVII. Fishes of the Yucatan Peninsula". Carnegie Institute Washington Publications. (457) pp. 157-287 (crc00250).
Hubbs, Carl Leavitt. 1935. "Fresh-water fishes collected in British Honduras and Guatemala". Miscellaneous Publications of the Museum of Zoology, Univ. of Michigan. (n. 28); pp. 13-15 (crc00252).
Hubbs, Carl Leavitt. 1920. "A note on the synonymy of the cichlid fish of Cuba and Barbadoes, Cichlasoma tetracanthus". Occasional Papers of the Museum of Zoology, University of Michigan. (n. 90), pp. 1-8 (crc03549).