| 翻訳と辞書 |
Tonna galea
''Tonna galea'', commonly known as the giant tun, is a species of marine gastropod mollusc in the family Tonnidae (also known as the tun shells). This very large sea snail or tun snail is found in the North Atlantic Ocean as far as the coast of West Africa, in the Mediterranean Sea and the Caribbean Sea. The species was first described by Carl Linnaeus in 1758.
==Description==
The shell of adult ''Tonna galea'' is very large, with an average height of . In terms of its weight however, the shell is very much lighter than the shell of most other large sea snails.〔 The aperture of the shell is "distinctly round" and wide,〔 〕 Shells of this species are often yellow-white in colour, with a blotch or band pattern that is brown.〔 The shell is thin and inflated,〔〔 but still relatively solid and durable.〔
''Tonna galea'' possess large salivary glands. The structure of these glands was first described and detailed by Heinrich Weber in 1927.〔 〕 Furthermore, the Giant Tun is also a luminescent species; this is an extremely rare characteristic among the prosobranch gastropods. The animal gives off light that is green-white in colour when it traverses through the water with its foot "well-extended".
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「Tonna galea」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.
|
|