From Mbamba Bay to Ikombe in the far north of the lake,
including Magunga Reef, Higga Reef, and the rocky shore south of
Mbamba Bay (Chuwa).
Sexual dimorphism:
Male breeding coloration similar across populations north
and south of the Ruhuhu River; some isolated populations exhibit an
overall ochre coloration. Female coloration very similar in all
populations, including ochre-colored ones.
Special notes:
Nigra-type Petrotilapia resembling
P. nigra from the Cape Maclear area. Distinct ochre-colored
populations at Magunga Reef, Higga Reef, and Chuwa are regarded as
geographical variants due to the absence of an impassable barrier
between populations.
Photo gallery