The diagnosis of the genus Labidochromis is revised to include species with
bicuspid outer teeth. Sixteen species, of which 13 are new, are described and illustrated
and the validity of five others is discussed. The interrelationships between members of
the genus and the relationship of the genus to other genera are discussed. No clearly
defined sister group to the genus has been found either within or outside the Lake Malawi
cichlid species flock. A key based on the coloration of known species is included. [Note
added by M.K. Oliver: This key is available
here.]