Scientific Name	Zenarchopterus dunckeri   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	Mohr, 1926	Depth	0 - 10M
Chinese	董氏異鱗鱵	Poisonous Fish	No
Family_Chinese	鱵科	Economic Fish	No
Family	F254　Hemiramphidae	Edible Fish	Yes	Chinese In Mainland China	董氏異鱗鱵
Max Length	14 cm	Aquarium Fish	No	Common Name	董氏異鰭鱵、補網師、水針
Distribution in World	India Ocean to West Pacific Ocean	Distribution in Taiwan	West、South
Habitats	Coral、Benthos、Estuary、Coastal、 Lagoon、Coral&Sand	Holotype Locality	Ambon Island, Moluccas Islands, Indonesia
Synonyms	Hemiramphus dispar
Reference	Kuo & Shao (1999)；Fishes of Japan(Nakabo, 2002)；臺灣淡水及河口魚類誌(陳及方, 1999)
Specimen List	ASIZP0057296. NMMBP03280. NMMBP09032.
Common Name	Duncker's river garfish
Redlist Status	Not in IUCN Redlist
Characteristic	Body elongate and compressed, with greatly prolonged, beak-like lower jaw; upper jaw short, triangular, and scaly, its width slightly shorter than its length; lower-jaw length longer than head length. Fleshy protrusion of nostril long. Total number of gill rakers on first gill arch 15 to 18, 3 to 6 on upper and 11 to 13 on lower limb of arch. Dorsal fin rays 10 to 12; anal fin rays 10 to 13; mature males with 3rd-5th dorsal ray filamentous and 6th-7th anal ray enlarged, fan-like; pectoral fins short with 10 rays; pelvic fins located closer to caudal-fin base than to origin of pectoral fins; distance from pelvic-fin origin to caudal-fin base contained 1.3 to 1.5 times in distance from pectoral-fin origin to pelvic-fin origin; caudal fin truncate. Predorsal scales 27 to 30. Body greenish above, silvery white below; upper jaw uniformly brown.
habitats	A tropical estuarine species. Found at surface levels in estuaries. Its habitat may be confined to brackish water. Feeds on terrestrial insects.
Distribution	Distributed in the Indo-West Pacific from Andaman Islands, New Guinea, the East Indies and the Admiralty, Solomon, and the Ryukyu Islands. Reported from the estuaries along the Cambodian coast. It is found in western and southern Taiwanese waters.
Utility	Not seen in markets.