| 翻訳と辞書 |
| Conus praecellens ： ウィキペディア英語版 |
Conus praecellens
''Conus praecellens'', common name the admirable cone, is a species of sea snail, a marine gastropod mollusk in the family Conidae, the cone snails and their allies.〔
Like all species within the genus ''Conus'', these snails are predatory and venomous. They are capable of "stinging" humans, therefore live ones should be handled carefully or not at all.
==Description==
The size of an adult cone varies between 20 mm and 63 mm. The shell is pear-shaped, broad and angulated at the shoulder, contracted towards the base. The body whorl is closely sulcate throughout, the sulci striate The intervening ridges of the rounded spire are carinate, concavely elevated, The acute apex is striate. The color of the shell is whitish, obscurely doubly banded with clouds of light chestnut, and the spire is maculated with the same.〔George Washington Tryon, Manual of Conchology vol. VI p. 74-75; 1884 (described as ''Conus cancellatus'')〕
This is a variable species, yet two distinct forms are recognized: (1) sowerbii form, Reeve, 1849 (a thicker, darker, and more densely spotted form with 2 protoconch whorls), and (2) aliguay form, Olivera & Biggs, 2010 (2.5 pearly white smooth protoconch whorls, more slender, higher spire, rounded shoulders, lighter colored).〔Biggs, J. S., Watkins, M. Showers Corneli, P. and Olivera, B. M. (2010). Defining a clade by morphological, molecular, and toxinological criteria: distinctive forms related to Conus praecellens A. Adams, 1854 (Gastropoda: Conidae). Nautilus 124:1-19.〕 The sowerbii form is the most common form, and until the late 1990s was the only form typically found and in private collections.
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「Conus praecellens」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.
|
|