Scientific Name
Pempheris oualensis  
Pempheris oualensis烏伊蘭擬金眼鯛
by: Lab of Fish Ecol. and Evo., BRCAS
Author Cuvier, 1831 Depth 1 - 35M
Chinese 烏伊蘭擬金眼鯛 Poisonous Fish No 
Family_Chinese 擬金眼鯛科 Economic Fish No 
Family F383 Pempheridae Edible Fish No  Chinese In Mainland China 黑稍單鰭魚 
Max Length 20 cm  Aquarium Fish Yes  Common Name 三角仔、刀片、水果刀、解餌刀、皮刀、洞豐仔(澎湖)、皮刀仔(澎湖) 
Distribution in World India Ocean to Pacific Ocean   Distribution in Taiwan East、West、South、North、North East、PonFu、ShaoLiuChew、LanI Is.、Greeb IS.、Tung Sa IS. 
Habitats Coral、Coastal、Lagoon  Holotype Locality Oualan 
Synonyms Pempheris oulensis, Pempheris ovalensis, Pemphperis oualensis   
Reference 臺灣魚類誌(沈等, 1993);The Live Marine Resources of the Western Central Pacific, Vol.5(FAO, 2001);Fishbase(2003)  Cuvier, G. etc. 1831 沈世傑 編 Shih-Chieh Shen ed. 1993 Mok, H. K. etc. 1997 
Specimen List ASIZP0055080. ASIZP0058881. ASIZP0058893. ASIZP0058981. ASIZP0058989. ASIZP0059262. ASIZP0060054. ASIZP0061398. ASIZP0080790. ASIZP0700182. ASIZP0900029. ASIZP0916815. BPBMI23060. FRIP20071. NMMBP01141. NMMBP02539. NMMBP02997. NMMBP04442. NMMBP05819. NMMBP05821. NMMBP06613. NMMBP06613B. NMMSTP00426. NTMP0945. NTOUP200611-824. NTUM04897. NTUM08162. NTUM08661. SU49415. USNM00343805.  
Barcode2015-10-23,Chia-Hao Chang,CO1,%
Common Name Oualan sweeper; Silver sweeper; Sweeper; Cave sweeper; Bronze sweeper; Copper sweeper 
Redlist Status NL Not in IUCN Redlist     
Characteristic Body rhomboid, its depth 39% SL or more. Eye large, without adipose lid. Snout short. Opercular spines short and blunt. Dorsal fin very short, usually higher than long, much shorter than anal-fin base and in advance of anal-fin origin, with VI narrow spines and 8 to 10 soft rays; anal-fin base long, with III spines and 38 to 43 soft rays; caudal fin shallowly forked; pectoral fins with 18-19 rays. Scales on flank cycloid and deciduous; lateral line reaching posterior end of caudal-fin rays, with 60 to 73 scales, and scales smaller than (and partly or mostly concealed by) surrounding scales, sensory tubes longer than wide or wider than long; 5-6 scales between lateral line and dorsal-fin origin. Prepelvic area narrow and keeled. Dark brown on back, shading to coppery on sides; dorsal fin with a dark leading edge that expands distally to produce dark tips on the first 2 or 3 soft rays; anal fin completely dusky, or mostly dusky except for a pale distal margin; pectoral fins usually with distinctly dark base; caudal fin dark posteriorly.
habitats Occurs in clear, shallow lagoon and seaward reefs, quite common along the reef margin. Feeds on benthic and planktonic crustaceans, other small invertebrates, and fishes at night. By day, it forms aggregations in caves. 
Distribution Widely distributed in Indo-West Pacific from Red Sea to the Line, Marquesan, and Ducie islands; north to Ryukyu Islands, south to Lord Howe and Rapa Islands. Throughout Micronesia. It is common in waters around Taiwan. 
Utility No commercial value.