Filimanus heptadactyla (Cuvier, 1829)
Sevenfinger threadfin
Filimanus heptadactyla
photo by Devarapalli, P.

Family:  Polynemidae (Threadfins)
Max. size:  38 cm TL (male/unsexed)
Environment:  demersal; brackish; marine
Distribution:  Western Pacific: Thailand, Malaysia and Indonesia to Papua New Guinea. All records in Indian Ocean are misidentifications for other species: Filimanus similis, Polydactylus mullani, Polydactylus sextarius (Ref. 57343).
Diagnosis:  Dorsal spines (total): 9-9; Dorsal soft rays (total): 12-13; Anal spines: 3-3; Anal soft rays: 11-12; Vertebrae: 24-24. 7 pectoral filaments, third or fourth filament, from ventralmost, the longest, not reaching midpoint of anal fin (Ref. 9685). Body brown above and golden below; fins yellow with black at least at margins; pectorals often mostly black (Ref. 9685).
Biology:  Found on open sandflats and muddy substrates (Ref. 57343).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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