Original description:
- Greenwood, Peter Humphry. 1954. "On two species of cichlid fishes from the Malagarazi River (Tanganyika), with notes on the pharyngeal apophysis in species of the Haplochromis group". Annals and Magazine of Natural History. (Ser12)7(78):401-414 (crc00208)
Type species: Haplochromis malagaraziensis David, 1937 (original designation).
Described species included (20):
valid: 19 synonym: 1- Tilapia polyacanthus Boulenger, 1899 (valid)
- Tilapia stormsi Boulenger, 1902 (valid)
- Haplochromis malagaraziensis David, 1937 (valid)
- Haplochromis torrenticola Thys van den Audenaerde, 1963 (valid)
- Haplochromis rheophilus Thys van den Audenaerde , 1963 (synonym)
- Haplochromis machadoi Poll, 1967 (valid)
- Schwetzochromis kalungwishiensis Greenwood & Kullander, 1994 (valid)
- Schwetzochromis luongoensis Greenwood & Kullander, 1994 (valid)
- Orthochromis kasuluensis DeVos & Seegers, 1998 (valid)
- Orthochromis luichensis DeVos & Seegers, 1998 (valid)
- Orthochromis mazimeroensis DeVos & Seegers, 1998 (valid)
- Orthochromis mosoensis DeVos & Seegers, 1998 (valid)
- Orthochromis rubrolabialis DeVos & Seegers, 1998 (valid)
- Orthochromis rugufuensis DeVos & Seegers, 1998 (valid)
- Orthochromis uvinzae DeVos & Seegers, 1998 (valid)
- Orthochromis kimpala Schedel, Vreven, Manda, Abwe & Schliewen, 2016 (valid)
- Orthochromis indermauri Schedel, Vreven, Manda, Abwe & Schliewen, 2018 (valid)
- Orthochromis mporokoso Schedel, Vreven, Manda, Abwe & Schliewen, 2018 (valid)
- Orthochromis katumbii Schedel, Vreven, Manda, Abwe & Schliewen, 2018 (valid)
- Orthochromis gecki Schedel, Vreven, Manda, Abwe & Schliewen, 2018 (valid)
Potentially undescribed species (2):
- sp. 'red' (undescribed)
- sp. 'igamba' (undescribed)