Scientific Name	Uraspis helvola   Pronounce			by: Lab of Fish Ecol. and Evo., BRCAS
Author	(Forster, 1801)	Depth	50 - 300M
Chinese	白舌尾甲鰺	Poisonous Fish	No
Family_Chinese	鰺科	Economic Fish	Yes
Family	F364　Carangidae	Edible Fish	Yes	Chinese In Mainland China	白舌尾甲鰺
Max Length	58 cm	Aquarium Fish	No	Common Name	瓜仔、沖鰺、黑面甘、黑魽、甘仔魚(臺東)、白鯌仔(澎湖)、瓜仔(澎湖)
Distribution in World	India Ocean to Pacific Ocean	Distribution in Taiwan	East、South、North、PonFu、ShaoLiuChew
Habitats	Benthos、Coastal	Holotype Locality	Society Is.
Synonyms	Caranx helvolus, Caranx micropterus, Leucoglossa candens, Scomber helvolus, Uraspis helvolus, Uraspis secunda
Reference	臺灣魚類誌(沈等, 1993)  沈世傑 編 Shih-Chieh Shen ed. 1993 Carpenter, K. E. etc. 1999 Lin, P. L. etc. 1999
Specimen List	ASIZP0056695. ASIZP0058191. ASIZP0066137. ASIZP0066416. ASIZP0066490. ASIZP0078293. ASIZP0078301. ASIZP0801366. ASIZP0801367. ASIZP0801369. ASIZP0807179. ASIZP0807187. ASIZP0911366. ASIZP0911367. ASIZP0911369. ASIZP0917179. ASIZP0917187. FRIP21555. NMMBP03025. NMMBP05212. NMMSTP00483.
Barcode	2008-03-25,Kui-Ching Hsu,CO1,100% 2012-01-02,柯慧玲,CO1,100% 2012-01-02,柯慧玲,CO1,100% 2016-01-26,Chia-Hao Chang,CO1,100% 2016-01-26,Chia-Hao Chang,CO1,100%
Common Name	White mouth crevalle; Whitemouth jack; Whitetongue Jack; Cottonmouth jack; Jack
Redlist Status	Not in IUCN Redlist
Characteristic	D. VII-VIII (the posterior 1 embedded and not apparent), I+28-29; A. 0 (detached spines embedded and not apparent), I+21-22; P. i+20-21; G.R. 5-6+14-15; CLS. 54-66 scutes; SLS. 33-37 all scutes; vertebrate 10+14. Adipose eyelid rudimentary. Breast naked ventrally to origin of pelvic fins; laterally, naked area of breast separated from naked base of pectoral fin by a broad band of scales. Lateral line becoming to below 12-13th ray of the second dorsal fin. The posterior 1-3 spine of first dorsal fin embedded and not apparent with growth; free anal spines only exist in juvenile. Tongue, roof and floor of mouth white or cream-coloured,the rest blue-black; head dusky to black, with a large, diffuse black opercular blotch; body dusky to black dorsally, lighter below and with 6 or 7 wide, dark bands and narrow pale interspaces (faint bands evident in specimens as large as 25 cm; in specimens smaller than 10 cm bands may extend onto second dorsal and anal fins); second dorsal and anal fins hyaline to black; the anal fin commonly, and the second dorsal fin occasionally with tips of the falcate lobe and fin margin pale; pelvic fins generally black in specimens smaller than 10 cm fork length, rapidly becoming pale whitish at larger sizes; caudal fin pale yellowish dusky with trailing edges and tips of lobes blackish.
habitats	A pelagic and demersal species found in sandy bottoms at the foot of the edge of the outer reefs, continental coasts and around islands. Solitary or forming small schools. Mainly nocturnal.
Distribution	Widely distributed in warm waters of Indo-Pacific. It is occasionally in southern Taiwanese waters.
Utility	Marketed fresh and salted or dried.