Scientific Name
Kyphosus bigibbus  
Pronounce  
Kyphosus bigibbus南方舵魚
by: Chen, Fu-Ming
Author Lacepède, 1801 Depth 1 - 30M
Chinese 南方舵魚 Poisonous Fish No 
Family_Chinese Economic Fish Yes 
Family F391 Kyphosidae Edible Fish Yes  Chinese In Mainland China 雙峰 
Max Length 75 cm  Aquarium Fish No  Common Name 白毛、白悶 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan East、South、PonFu、ShaoLiuChew、LanI Is.、Greeb IS.、Tung Sa IS. 
Habitats Coral、Coastal  Holotype Locality no locality 
Synonyms Dorsuarius nigrescens, Kyphosus biggibus, Kyphosus fuscus, Kyphosus sp., Pimelepterus fallax, Pimelepterus fuscus, Pimelepterus indicus, Pimelopterus fuscus, Xyster fuscus   
Reference 臺灣魚類誌(沈等, 1993)  Lacepede, B. G. E. 1801 Zama, A. 1976 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List ASIZP0058748. ASIZP0060653. ASIZP0805860. ASIZP0915860. NMMBP02309. NTUM06379.  
Barcode2015-10-23,Chia-Hao Chang,CO1,%
Common Name Southern drummer; Brown chub; Gray rudderfish; Grey chub; Grey drummer; Insular rudderfish; Grey sea chub 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body oblong, moderately deep; caudal peduncle slightly deep. Snout short,. Mouth terminal, number of lanceolate incisor-like teeth. Dorsal fin with XI spines, and 12 (rarely 11 or 13) soft rays; base of spinous portion longer than base of soft portion; soft portion of dorsal fin low, the margin straight; anterior soft rays of dorsal fin a little shorter than longest dorsal-fin spine; anal fin with III spines, with 11 (rarely 10 or 12) soft rays, anterior soft portion not elevated; caudal fin shallowly forked with pointed lobes. Lateral line scales 49 to 55. Body bluish brown dorsally, dusky grey ventrally, with several brown or bluish brown longitudinal lines on flank, large specimens uniformly dusky blue or dark brown dorsally; head with 2 oblique brown or bluish brown bands, one through eye, the other one below eye; dorsal and anal fins dark blue, the margin of soft portion with a darker band; pectoral fins silver brown near base, the distal half slightly darker.
habitats Inhabits coastal areas, primarily in coral and rocky reefs, often occurring in the inner reefs. Herbivorous. Occasionally schools in groups with other kyphosid fishes. Juveniles often occur far out at sea beneath floating debris and seaweed. 
Distribution Widespread in the tropicaland subtropical coastal waters of Indo-Pacific from Red Sea and East Africa to the Marquesas and Rapa Islands; north to Japan, and south to Australia. 
Utility Food fish; marketed fresh.