英文.... | Members of an order containing 400 living species and many fossil species of predatory, cartilaginous fishes that have a fusiform shape and gill cleft location on either side of the head resembling bony fishes; most having a tough skin that is dull gray in color and roughened by toothlike scales; a muscular, asymmetrical, upturned tail and pointed fins; a pointed snout extending forward and over a crescentic mouth set with sharp triangular teeth; and a lack of a swim bladder requiring the animals to swim nearly perpetually to keep from sinking to the bottom. A few of the larger species are able to maintain their body temperature above the surrounding water temperature, although they are not truly warm blooded. Sharks developed as long ago as 450 million years ago. Some classifications place sharks in the superorder Selachimorpha. |
鯊目 (目)............ | [AS-Academia Sinica] |
................. | 大英百科全書線上繁體中文版 August 14, 2012 |
軟骨鯊目............ | [AS-Academia Sinica] |
................. | 中央研究院中英雙語知識本體詞網 August 14, 2012 |
鯊............ | [AS-Academia Sinica] |
................. | 智慧藏百科全書網 August 14, 2012 |
................. | 大英百科全書線上繁體中文版 August 14, 2012 |
鯊魚............ | [AS-Academia Sinica] |
................. | 國家教育研究院-雙語詞彙、學術名詞暨辭書資訊網 August 14, 2012 |
................. | 智慧藏百科全書網 August 14, 2012 |
................. | 大英百科全書線上繁體中文版 August 14, 2012 |
Selachii(order)............ | [VP] |
................. | Gulf of Maine Research Institute (2008-) accessed 18 November 2008 |
................. | Encyclopedia Britannica Online (2002-) accessed 18 November 2008 |
sharks............ | [VP] |
................. | Collier's Encyclopedia (1950) 2:253 |
................. | CDMARC Subjects: LCSH (1988-) BT chondrichthyes |
................. | Oxford English Dictionary (1989) |
................. | Judge and Toyne, Oxford Illustrated Encyclopedia (1985) illustration |
................. | Thesaurus of Park, Recreation, and Leisure Service Terms (1990) use cartiliginous fish |
................. | Webster's Third New International Dictionary (1961) |
................. | Random House Unabridged Dictionary (1993) illustration |
................. | BHA Subject Headings (1985-) |
shark............ | [VP] |
................. | Oxford English Dictionary Online (2002-) |
Selachimorpha(superorder)............ | [VP] |
................. | Encyclopedia Britannica Online (2002-) |