Polydactylus nigripinnis Munro, 1964
Blackfin threadfin
photo by CSIRO

Family:  Polynemidae (Threadfins)
Max. size:  20 cm TL (male/unsexed)
Environment:  demersal; brackish; marine
Distribution:  Western Pacific: Papua New Guinea, Australia, and the Arafura Sea.
Diagnosis:  Body uniformly golden-silver. Pectoral fin rays unbranched, blackish; tip of uppermost filament reaching to or just short of level of posterior tip of upper part of pectoral fin (Ref. 41110).
Biology:  Collected off river mouths as well as offshore (Ref. 57343). Inhabits coastal waters over sand or mud bottoms (Ref. 3132). Known to be taken at 150 m in the Gulf of Carpentaria but typically from a much shallower depth (Ref. 3132).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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