Orthochromis polyacanthus (Boulenger, 1899)

Family:  Cichlidae (Cichlids), subfamily: Pseudocrenilabrinae
Max. size:  11.8 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater,
Distribution:  Africa: endemic to Lake Mweru (Ref. 26626, 122085). Reports from other parts of Congo River in Democratic Republic of the Congo (Ref. 82324, 82335, 106245) and Zambia (Ref. 246, 27609) are either unconfirmed or questionable, or belong to other species (Ref. 26626, 106290).
Diagnosis:  Dorsal spines (total): 18-19; Dorsal soft rays (total): 9-9; Anal spines: 3-3; Anal soft rays: 7-7; Vertebrae: 31-32. Description: frontal profile steep, with a small interruption at about height of eye; upper parts of head slightly rounded; lower jaw somewhat shorter than upper jaw; caudal fin slightly rounded to subtruncate (Ref. 52307) Cheek squamation variable, a scaleless area anteroventrally; chest squamation, minute and deeply embedded scales, sometimes with bilaterally scaleless area; nape-nuchal scales visible, larger than those found on the ventral surface of the belly (Ref. 26626). Coloration: Living coloration unknown (Ref. 52307). Preserved specimens: brownish to olive; pale dots in dorsal and anal fins; caudal fin with dark upper and lower edges and several thin, dark vertical bars (Ref. 52307).
Biology:  Rheophilic (Ref. 52307).
IUCN Red List Status: Least Concern (LC); Date assessed: 16 February 2009 Ref. (130435)
Threat to humans:  harmless


Source and more info: www.fishbase.org. For personal, classroom, and other internal use only. Not for publication.