Scientific Name
Dipterygonotus balteatus  
Dipterygonotus balteatus雙鰭烏尾鮗
by: ©Sainsbury, Keith: CSIRO
Author (Valenciennes, 1830) Depth 37 - 91M
Chinese 雙鰭烏尾鮗 Poisonous Fish No 
Family_Chinese 烏尾鮗科 Economic Fish No 
Family F371 Caesionidae Edible Fish No  Chinese In Mainland China 雙鰭梅鯛 
Max Length 14 cm  Aquarium Fish No  Common Name 烏尾冬仔 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan PonFu 
Habitats Coral、Benthos、Coastal  Holotype Locality Sri Lanka 
Synonyms Dipterogonotus leucogramicus, Dipterygonatus balteatus, Dipterygonotus balteata, Dipterygonotus gruveli, Dipterygonotus leucogrammicus, Dipterygonotus leucogrammieus, Smaris balteatus   
Reference 福建魚類誌(朱等, 1985)  Cuvier, G. etc. 1830 朱元鼎 編 1984 朱元鼎 編 1985 
Specimen List ASIZP0057554.  
Common Name Rubyfish; Redbait; Mottled fusilier 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body slender, fusiform, elongate and moderately compressed. Two postmaxillary processes; small conical teeth on dentary and vomer; premaxilla and palatines without teeth. Dorsal fin usually with XIV spines and 8 to 11 soft rays; anal fin with III spines and usually 9 or 10 soft rays; pectoral fin with 16 to 19 rays. Scales in lateral line 68 to 80; upper peduncular scale rows 11 to 14, lower peduncular scale rows 15 to 18; scale rows above lateral line to origin of dorsal fin 9 to 1 1 ; scale rows below lateral line to origin of anal fin 15 to 18; usually 6 to 9 scale rows on cheek; predorsal scales usually 29 to 34; dorsal and anal fins without scales, supratemporal band of scales indistinct, scales in interorbital region reaching near to ascending premaxillary process. Body brownish bronze dorsally; silvery white ventrally; a thin, straight, tan stripe about 1 scale wide from orbit to caudal fin, directly above lateral line for the anterior half of its length, about 2 scales above lateral line on caudal peduncle; above and parallel to this stripe 2 thin, irregular, and usually interrupted stripes of the same colour. Dorsal, anal, pelvic, and pectoral fins clear to pinkish; axil of pectoral fin black; caudal fin tan to pinkish.
habitats Primarily a near-shore pelagic species, but swims mainly in open water away from reefs. Mixed with other planktivores and is easily overlooked. Feeds on zooplankton. 
Distribution Widespread in the Indo-Pacific, from East Africa, not including the Red Sea or Arabian (Persian) Gulf, to the Solomon Islands. It is very rare and only found in Penghu Is.. 
Utility Occasionally marketed fresh. Important as a tuna baitfish in the Maldives and the Laccadive Archipelago.