Polydactylus malagasyensis Motomura & Iwatsuki, 2001
African blackspot threadfin
Polydactylus malagasyensis
photo by FAO

Family:  Polynemidae (Threadfins)
Max. size:  14.9 cm SL (male/unsexed)
Environment:  demersal; brackish; marine; depth range 5 - 62 m
Distribution:  Western Indian Ocean: Kenya, Mozambique, South Africa, and Madagascar. Likely to occur in Somalia and Tanzania.
Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 12-13; Anal spines: 3-3; Anal soft rays: 12-12; Vertebrae: 24-24. With 6 pectoral filaments; uppermost not reaching to (or extending slightly beyond) posterior tip of pectoral fin. Pectoral fin, rays long, 21-26% of SL; fin base long, 10-12% of SL; all rays branched except uppermost 1 or 2. Second dorsal spine long, 7-9% of SL. Well-developed swim bladder. A large black spot anteriorly on lateral line (Ref. 40958).
Biology:  Found in estuaries as well as offshore (Ref. 57343).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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