Petrochromis macrognathus Yamaoka, 1983

Family:  Cichlidae (Cichlids), subfamily: Pseudocrenilabrinae
Max. size:  17.2 cm SL (male/unsexed)
Environment:  demersal; freshwater; depth range 0 - 0 m,
Distribution:  Africa: endemic to Lake Tanganyika, lake-wide distribution, but not found north of Cape Kabogo (Ref. 46829).
Diagnosis:   
Biology:  Cryptic species between rocks near shore (Ref. 35773). Occurs in the upper 2-3 m of the water column (Ref. 7343, 46829, 52921). Feeds by scraping loose algae from the vertical faces of boulders in turbulent water (Ref. 6770, 46829). In order to cope with the movement of the surge its feeding speed is fast; very shy species; males are territorial and hide in large caves when threatened (Ref. 46829). Often solitary but more than 2 individuals may be seen at once (Ref. 7343).
IUCN Red List Status: Data deficient (DD); Date assessed: 31 January 2006 Ref. (130435)
Threat to humans:  harmless


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