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''Cirrhigaleus australis'', also known as the Southern Mandarin Dogfish, is a species of Mandarin dogfish shark in the genus ''Cirrhigaleus''. It was distinguished from ''Cirrhigaleus barbifer'', which lives in the North Pacific, on an expedition in the coral reefs near Australia in 2007. It is now known to live in the temperate waters east of Australia and possibly around New Zealand, at depths of 146–640 metres.〔"(New Shark Discovered! )". CryptoMundo. Retrieved on 2008-10-16.〕 〔"(New Mandarin shark Discovered )". Practical Fishkeeping. Retrieved on 1008-10-17. 〕 ==Physical characteristics== C. australis is medium-sized and robust compared to other dogfish. It is grey-brown above and pale below. The posterior margins of the pectoral and pelvic fins are white.〔"(Southern Mandarin Dogfish )". Australian Museum. Retrieved on 2008-12-01.〕 This species of shark normally grow less than a metre long, but have been known to reach 1.25 metres.〔〔 C. australis has smaller eyes, pectoral fins, dorsal fins, and spine than its cousin. The first dorsal fin is medium-sized and slightly raked. The second is similarly shaped, but a bit smaller. The pectoral fins are fairly large. Both dorsal spines are long. It also has strangely long barbels, giving it the name "Mandarin". There are about 115 centra along the back.〔"(Cirrhigaleus australis Southern Mandarin Dogfish )". FishBase. Retrieved on 2008-10-14.〕 Scientists say the shark is harmless. Its defensive techniques are useless against many larger fish, and, as a consequence, it is very vulnerable to other sharks and fish. Also, C. australis has very low resilience, its population doubling only about every 14 years.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Cirrhigaleus australis」の詳細全文を読む スポンサード リンク
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