Scientific Name
Pseudorhombus oligodon  
Pseudorhombus oligodon少牙斑鮃
by: Lab of Fish Ecol. and Evo., BRCAS
Author (Bleeker, 1854) Depth 30 - 40M
Chinese 少牙斑鮃 Poisonous Fish No 
Family_Chinese 牙鮃科 Economic Fish Yes 
Family F492 Paralichthyidae Edible Fish Yes  Chinese In Mainland China 少牙斑鮃 
Max Length 30 cm  Aquarium Fish No  Common Name 扁魚、皇帝魚、半邊魚、比目魚、肉瞇仔(澎湖) 
Distribution in World North West Pacific Ocean   Distribution in Taiwan West、South、North East 
Habitats Benthos、Coastal  Holotype Locality Nagasaki, Japan 
Synonyms Pseudorhombus arsius, Pseudorhombus cinnamoneus, Rhombus oligodon   
Reference 臺灣魚類誌(沈等, 1993);中國動物誌-鰈形目(李&王, 1995);Fishes of Japan(Nakabo, 2002)  Bleeker, P. 1854 沈世傑 編 Shih-Chieh Shen ed. 1993 李思忠, 王惠民 1995 Nakabo T. 2002 Nakabo T. 2002 
Specimen List ASIZP0062888. ASIZP0063577. ASIZP0064679. ASIZP0064684. ASIZP0064695. ASIZP0064798. ASIZP0070319. ASIZP0070575. ASIZP0074671. ASIZP0078448. ASIZP0078449. ASIZP0080109. ASIZP0700363. ASIZP0800494. ASIZP0800495. ASIZP0800496. ASIZP0800497. ASIZP0807249. ASIZP0807250. ASIZP0910494. ASIZP0910495. ASIZP0910496. ASIZP0910497. ASIZP0917249. ASIZP0917250. NMMBP03339. NMMBP05838. NMMBP09034. NMMSTP01600. NTUM01595. NTUM01597. NTUM01598. NTUM02481. NTUM05475. NTUM05476. NTUM05522. NTUM05523. ...List all 42 records... 
Barcode2012-01-02,柯慧玲,CO1,100% 2012-01-02,張家豪,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 Roughscale flounder 
Redlist Status NL Not in IUCN Redlist     
Characteristic Dorsal-fin rays 78-82; anal-fin rays 61-66; pectoral-fin rays 12-13. Body deeply ovoid, its depth 2.1 to 2.3 times in standard length. Head length 3.5 to 3.8 times in standard length; upper profile of head distinctly notched in front of upper eye; a line connecting base of first dorsal-fin ray and posterior nostril on eyed side crosses maxilla. Teeth in upper jaw with some canines anteriorly, teeth in lower jaw stronger and more widely spaced than those in upper jaw, with some large canines anteriorly. Lateral line curved above pectoral fins, supratemporal branch extending to between seventh to ninth dorsal-fin rays. Body greenish brown, with a dark blotch at junction between straight and curved portions of lateral line; 2 dark spots at boundary of opercle and trunk below base of pectoral fins. Two dark spots along gill opening below pectoral fin. Dark blotch a beginning of straight part of lateral line. Soft ray count of pectoral fin refers to that on ocular side.
habitats Inhabits muddy and sandy bottoms of the continental shelf. Feeds mainly on small demersal fishes. 
Distribution Northwest Pacific: southern Japan to the South China Sea. Taiwan: South, North-East, West. 
Utility Commercial fishery species. Marketed fresh.