Scientific Name
Hemitrygon akajei
Hemitrygon akajei赤魟
by: B. F. Lee etc.
Author (Bürger 1841) Depth 5 - 100M
Chinese 赤魟 Poisonous Fish Yes 
Family_Chinese 魟科 Economic Fish No 
Family F055 Dasyatidae Edible Fish Yes  Chinese In Mainland China 赤魟 
Max Length 200 cm  Aquarium Fish No  Common Name 赤土魟、紅魴、牛尾魴 
Distribution in World Australia   Distribution in Taiwan East、West、South、South West、North、North East、PonFu、ShaoLiuChew、LanI Is.、Greeb IS. 
Habitats Benthos、Estuary、Coastal、Lagoon、
Holotype Locality Southwestern coast of Japan 
Synonyms Dasyatis akajel, Dasyatis bennettii, Trygon akajei   
Reference 臺灣魚類誌(沈等, 1993);福建魚類誌(朱等, 1985)  Masuda, H., K. Amaoka, C. Araga, T. Uyeno, etc. 1984 朱元鼎 編 1985 Honma, Y. etc. 1991 沈世傑 編 Shih-Chieh Shen ed. 1993 
Specimen List
Common Name Red stingray; Red skate; Whipray; Whip ray; Yellow stingray; Japanese stingray; Japanese red stingray 
Redlist Status NL Not in IUCN Redlist     
Characteristic Disc rhomboid wider than long, outer and posterior angles rounded. Snout shout, forms an obtuse angle, 2.2 to 2.3 in head. Eyes large, 4.5 in head. Spiracles close behind eyes. Mouth transberse with three papillae at the bottom. Teeth rhomboid, with deeble cusp. Nostrils deep, internarial equals dentary width. Gill openings ewuidistant. No rostral cartilage. Body smooth. Median line of back with a row of tubercles. No dorsal fin. Ventrals obliquely truncate, angles blunt. Tail longer than body with a short low keel behind the caudal spine, and a more distinct cutaneous fold below. Specimen in formalin dusky brown above, little paler about edges of disc. Whitish below, outer margins of dise little brownish. Tail blackish brown.
habitats Found in coral reefs and estuarine areas, on sand and mud bottoms. Feeds on small fishes and crustaceans. Ovoviviparous with up to 10 in a litter. Served in 'miso' soup, hard boiled with seasonings, or for 'kamaboko' material. 
Distribution Japan, China, Taiwan, Korea.