| 翻訳と辞書 |
| Aspidodiadema jacobyi ： ウィキペディア英語版 |
Aspidodiadema jacobyi
''Aspidodiadema jacobyi'' is a small sea urchin in the family Aspidodiadematidae. It lives in tropical seas at great depths. Aspidodiadema jacobyi was first scientifically described in 1880 by Alexander Emanuel Agassiz, an American scientist.〔Kroh, A. (2010). ''Aspidodiadema jacobyi''] (Alexander Emanuel Agassiz, 1880). In: Kroh, A. & Mooi, R. (2010) (World Echinoidea Database ). at the World Register of Marine Species.〕
==Description==
''Aspidodiadema jacobyi'' has a globular hard test or shell protecting the inner organs. The mouth has 10 buccal plates and small rounded buccal notches and is on the oral (bottom) surface which is slightly flattened. The aboral (top) surface has a small coronal ring of tubercles surrounding the anus. The test is composed of 5 radial ambulacral sets of 3 plates, separated by 5 ambulacral grooves. There are rows of pairs of pores between the ambulacral areas through which the tube feet protrude. Every third row of plates is larger than the other 2 and has a zig-zag row of large primary tubercles. This row does not extend quite as far as the other 2 rows of plates which have similar primary tubercles set serially in a straight line. These large tubercles are perforate and crenulate. There are smaller, secondary tubercles at the edge of the plates. Slender, flexible spines articulate with all these tubercles. These spines are hollow and have bridging structures across their lumina with minute needle-like pillars. The test has green tubercles with purple interambulacral areas.〔(''Aspidodiadema'' A. Agassiz, 1878 ) London: Natural History Museum. Retrieved 2012-03-04.〕
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「Aspidodiadema jacobyi」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.
|
|