Jordan's Blue Dogshark

A small, very slim shark with a long, narrow snout, big eyes with rear notches, short labial furrows, and small, oblique-cusped teeth with smooth edges; 2nd dorsal fin small, low and behind larger anal fin; interdorsal ridge rudimentary or absent (Ref. 5578). Grey above, pale below, fins with pale edges (transparent in life), caudal and first dorsal fins with narrow dark margin, first dorsal fin also with a dusky tip (Ref. 9997).

Viviparous, with a yolk-sac placenta; 2-4 pups per litter. Size at birth 40-43 cm; 54-55 cm TL (Ref.58048). Distinct pairing with embrace (Ref. 205).

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Analspines: 0; Analsoft rays: 0

Occurs on the continental shelf (Ref. 75154). Feeds on fish, squids and shrimps (Ref. 5578).

Found on continental and insular shelves; mainly near the bottom (Ref. 6871). Feeds on small bony fishes, shrimps and cuttlefish (Ref. 244). Viviparous (Ref. 50449); gives birth annually to litters of 2-4 pups (Ref.58048). Caught in artisanal and small scale commercial fisheries (Ref. 9997). Utilized fresh for human consumption (Ref. 244); meat and fins, but of limited value due to its small size (Ref.58048).

fisheries: commercial; gamefish: yes

分布於印度-西太平洋區，西起非洲東岸，東至菲律賓，北至日本，南至澳洲。臺灣西部海域有分布。

主要以底拖網、流刺網及延繩釣捕獲，具有經濟價值。肉質佳，生炒或加工成魚丸及魚漿等皆宜。

體形頗修長。頭相當窄且稍縱扁。尾基上下方各具一凹窪。吻狹長。眼大，圓形，眼眶後緣具「V」字形缺刻，瞬膜發達。前鼻瓣短而呈窄三角形；無口鼻溝或觸鬚。唇溝很不發達，通常僅侷限於口角部位。口裂寬，弧形，口閉時不露齒；上下頜齒同型，前側齒修長，齒尖外斜，邊緣光滑，無小齒尖。噴水孔缺如。背鰭2個，背鰭間無隆脊，尾柄無側隆背；第一背鰭寬大，起點在胸鰭後角之後，後緣凹入，上角鈍圓，下角尖突；第二背鰭小，起點在臀鰭起點之後，後緣入凹，後角尖突；胸鰭中大型，稍呈鐮刀形，後緣凹入，外角鈍尖，內角鈍圓，鰭端伸達不及第一背鰭基底；尾鰭寬長，尾椎軸上揚，下葉前部顯著三角形突出，中部低平延長，與後部間有一深缺刻，後部小三角形突出，尾端尖突。體背側灰褐色；腹側白色；體無任何色斑。

棲息於大陸棚或島嶼棚的近、外海底棲小型鯊類。主要以魚類、蝦類及烏賊為食。胎生，一胎可產下2尾幼鯊，剛出生之幼鯊體長可達42-43公分。

The sliteye shark (Loxodon macrorhinus) is a species of requiem shark, in the family Carcharhinidae, and the only member of its genus. It is found in the tropical waters of the Indo-West Pacific between latitudes 34° N and 30° S, from depths of 7 to 100 m. It can reach a length of about 95 cm.

Found in coastal waters. Feeds on small bony fishes, including anchovies and croakers, and shrimp and cuttlefish. Viviparous; 2-4 pups per litter; 40-43 cm at birth. Utilized fresh for human consumption.