Scientific Name
Gymnura japonica  
Gymnura japonica日本燕魟
by: Yi-Lang Jheng
Author (Temminck & Schlegel, 1850) Depth - M
Chinese 日本燕魟 Poisonous Fish No 
Family_Chinese 燕魟科 Economic Fish No 
Family F057 Gymnuridae Edible Fish No  Chinese In Mainland China 日本燕魟 
Max Length 100 cm  Aquarium Fish No  Common Name 日本鳶魟、魴仔、臭尿破魴(澎湖) 
Distribution in World   Distribution in Taiwan North East 
Habitats   Holotype Locality Nagasaki Bay, Japan 
Synonyms Gymmura japonica, Pteroplatea japonica   
Reference 臺灣魚類誌(沈等, 1993);臺灣產土魟科魚類之系統分類研究(張弘俊,1985)   Masuda, H., K. Amaoka, C. Araga, T. Uyeno, etc. 1984 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List NTMP0685. NTUM00035Paratype. NTUM00052Paratype. NTUM01702. USNM00192559.  
Barcode2008-03-24,Kui-Ching Hsu,CO1,100% ,,CO1,100%
Common Name Japanese butterflyray; Japanese butterfly ray 
Redlist Status NL Not in IUCN Redlist     
Characteristic Disc much broader than long, outer angles rounded, depressed and thin. Snout short, blunt, 2.4 in head. Eyes small, prominent, 3 in snout. Mouth side, little arched, 1.26 in head. Teeth minute, numerous, each with sharp, triangular denticle. Nostrils broad, oblique; front nasal valve broad, low lobe, hind valve short fold extending half way to internarial. Spiracles large, transverse. Gill openings small, equidistant. No dorsal fin. Ventrals small. Narrow. Tail whitish, with six black blotches above. Whitish below.
habitats Inhabits sandy or muddy bottom in shallow waters. Feeds on benthic animals. Spines covered with skin with poisonous glands. Ovoviviparous. Used as 'kamaboko' material. 
Distribution China, Japan, Korea, Taiwan.