Copyright by Kim In Young.

연골어강→판새아강→흉상어목→두툽상어과→브로드핀 쏘테일 캣샤크(Broadfin sawtail catshark; Galeus nipponensis)
Class Chondrichthyes→Subclass Elasmobranchii→Order Carcharhiniformes→Family Scyliorhinidae→Broadfin sawtail catshark
(Galeus nipponensis)

흉상어목 두툽상어과 Order Carcharhiniformes (ground sharks)/Family Scyliorhinidae(cat sharks)
브로드핀 쏘테일 캣샤크(Broadfin sawtail catshark)
Galeus nipponensis (Nakaya, 1975) 70cm(TL)

분포; 서북태평양/중국, 일본, 규슈•팔라우 해령에 분포.

일반 개요; 흔히 있는 두툽상어과(catsharks) 상어이다. 일본 동남부와 남중국해 150~540m 수심 해저 바닥에서 발견된다. 몸이 가늘고 길며 주둥이가 뾰족하다. 등과 꼬리에 불분명한 안장무늬가 7~8개 있다. 꼬리지느러미의 상단 가장자리에 긴 피부치들의 등성마루가 있다. 수컷의 성기(clasper)가 매우 길어서 뒷지느러미에 닿을 정도이다. 성어든 미성어든 주로 물고기를 먹으며 두족류, 갑각류도 먹는다. 난생이며 연중 산란한다. 세계자연보전연맹(IUCN)은 아직은 이 종에 대해 조치를 내릴만한 자료를 갖지 않고 있다.
Ref. Brief drawings by Nakabo, and FAO.

Order Carcharhiniformes(ground sharks)/Family Scyliorhinidae(cat sharks)
Broadfin sawtail catshark
Galeus nipponensis (Nakaya, 1975) 70cm(TL)

Distribution: Northwest Pacific: China, Japan and the Kyushu-Palau Ridge

General: The broadfin sawtail catshark (Galeus nipponensis) is a common species of catshark, family Scyliorhinidae. It is found on or near the bottom at depths of 150–540 m (490–1,770 ft), from southeastern Japan to the East China Sea. A slender species growing to 70 cm long, this shark is characterized by a fairly long, pointed snout, a series of indistinct, dark saddles along its back and tail, and a prominent crest of enlarged dermal denticles along the dorsal edge of its caudal fin. In addition, adult males have very long claspers that almost reach the anal fin. The broadfin sawtail catshark is an opportunistic predator of bony fishes, cephalopods, and crustaceans, with immature and mature sharks being primarily piscivorous. It is oviparous and reproduces year-round. The International Union for Conservation of Nature (IUCN) presently lacks the information to assess the conservation status of this species.
Ref. Brief drawings by Nakabo, and FAO.