Original description:
- Eccles, David H. & E. Trewavas. 1989. "Malawian cichlid fishes. The Classification of some Haplochromine genera". Lake Fish Movies, Herten, West Germany. 1-334 (crc00063)
Type species: Haplochromis macrostoma Regan, 1922 (original designation).
Described species included (4):
valid: 2 synonym: 2- Haplochromis macrostoma Regan, 1922 (valid)
- Haplochromis maculiceps Ahl, 1926 (synonym)
- Haplochromis polyodon Trewavas, 1935 (synonym)
- Tyrannochromis nigriventer Eccles, 1989 (valid)
Potentially undescribed species (1):
- sp. 'macrostoma short pedicel' (undescribed)