| 翻訳と辞書 |
| Tiger catshark ： ウィキペディア英語版 |
Tiger catshark
The tiger catshark (''Halaelurus natalensis'') is a species of catshark, belonging to the family Scyliorhinidae. It is found over sandy areas and near reef peripheries off South Africa and perhaps Mozambique, from close to shore to usually no deeper than . Reaching a length of , this small, slim shark has a broad, flattened head with an upturned snout tip. It can additionally be identified by its dorsal colour pattern of ten dark brown saddles on a yellowish brown background.
Bottom-dwelling and inactive, the tiger catshark feeds on a wide variety of fishes and invertebrates from on or near the sea floor. An oviparous species, the female retains her eggs internally until the embryos are at an advanced state of development, resulting in a relatively short hatching time after laying. Between 12 and 22 encapsulated eggs are produced at a time, which the female attaches to the bottom. The tiger catshark is caught incidentally by commercial and recreational fishers but has no economic value. It has been listed as Data Deficient by the International Union for Conservation of Nature (IUCN), pending more information.
==Taxonomy==
British ichthyologist Charles Tate Regan described the tiger catshark in a 1904 issue of the scientific journal ''Annals and Magazine of Natural History'', based on two specimens presented to the British Museum by J. F. Queckett. He placed the species in the genus ''Scyllium'' (a synonym of ''Scyliorhinus'') and gave it the specific epithet ''ラテン語:natalense'', because the type specimens were reportedly collected off the Natal coast of South Africa (though there is suspicion that they were mislabelled and actually came from Algoa Bay).〔〔 Later authors reassigned this species to the genus ''Halaelurus''.〔 The lined catshark (''Halaelurus lineatus'') was once treated as conspecific to the tiger catshark, until it was described as a separate species in 1975.〔
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「Tiger catshark」の詳細全文を読む
スポンサード リンク
| 翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|