Zenarchopterus dunckeri Mohr, 1926
Duncker's river garfish
Zenarchopterus dunckeri
photo by Ratmuangkhwang, S.

Family:  Zenarchopteridae (Internally fertilized halfbeaks)
Max. size:  14 cm SL (male/unsexed)
Environment:  pelagic; brackish; depth range - 0 m
Distribution:  Indo-West Pacific: Andaman Islands, New Guinea, the East Indies and the Admiralty, Solomon, and the Ryukyu Islands (Ref. 10943). Reported from the estuaries along the Cambodian coast (Ref. 12693).
Diagnosis:  Dorsal spines (total): 0-0; Dorsal soft rays (total): 10-12; Anal spines: 0-0; Anal soft rays: 10-13; Vertebrae: 37-42. Sixth anal fin ray thickened and greatly elongate, reaching posteriorly past the base of the caudal fin. Fourth or fifth dorsal fin ray of males thickened and much longer than the other dorsal rays, the distal end flat and wider than the other dorsal rays.
Biology:  A tropical estuarine species (Ref. 10943). Found at surface levels in estuaries. Its habitat may be confined to brackish water. Feeds on terrestrial insects. Not seen in markets (Ref. 12693).
IUCN Red List Status: Least Concern (LC); Date assessed: 21 May 2020 Ref. (124695)
Threat to humans:  harmless
Country info:   

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