Petrochromis

Petrochromis is a genus of cichlids endemic to Lake Tanganyika in east Africa.

Species
There are currently 8 recognized species are in this genus:
 * Petrochromis ephiphium Brichard, 1989
 * Petrochromis famula Matthes & Trewavas, 1960
 * Petrochromis fasciolatus Boulenger, 1914
 * Petrochromis horii Takahashi & Koblmüller, 2014
 * Petrochromis macrognathus Yamaoka, 1983
 * Petrochromis orthognathus Matthes, 1959
 * Petrochromis polyodon Boulenger, 1898
 * Petrochromis trewavasae Poll, 1948 (Thread-fin cichlid)