Ptychochromis onilahy Stiassny & Sparks, 2006
photo by Stiassny, M.L.J.

Family:  Cichlidae (Cichlids), subfamily: Ptychochrominae
Max. size:  8.58 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Africa: Madagascar.
Diagnosis:  Dorsal spines (total): 13-13; Dorsal soft rays (total): 12-12; Anal spines: 3-3; Anal soft rays: 8-9; Vertebrae: 26-27. It is distinguished from all congeners by the presence of a lachrymal plate that extends ventrally to cover a portion of the upper lip (Ref. 57663). Body deep and laterally compressed (Ref. 57663). Two inner rows of teeth in both upper and lower jaws (Ref. 57663). It has cycloid scales above the upper lateral line on the flanks (Ref. 57663). In life, adults are uniformly gray brown, paler ventrally and lacking any obvious body markings (Ref. 57663). In preservative, the ground coloration is brownish to golden-brown, lighter ventrally, and all fins are brownish (Ref. 57663).
Biology: 
IUCN Red List Status: Extinct (EX); Date assessed: 15 May 2016 Ref. (130435)
Threat to humans:  harmless


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