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Cephalodiscida : ウィキペディア英語版 | Cephalodiscida
Cephalodiscida is one of two orders in the class Pterobranchia, which are small, worm-shaped animals. Members belong to the hemichordates.〔(animaldiversity.ummz.umich.edu )〕〔(Eol.org )〕 Species in this order are sessile, living in clear water and secrete tubes on the ocean floor.〔Shipley, A.E. (1902). Zoology: An Elementary Textbook. Cambridge: Cambridge University Press.〕 ==Taxonomy== The order is a small one, with only two known families, each containing a single genus. Order Cephalodiscida * Family Atubaridae * * Genus ''Atubaria'' * * * Species ''Atubaria heterolopha'' Sato, 1935 * Family Cephalodiscidae * * Genus ''Cephalodiscus'' * * * ''Cephalodiscus agglutinans'' Harmer & Ridewood, 1914 * * * ''Cephalodiscus atlanticus'' Bayer, 1962 * * * ''Cephalodiscus australiensis'' author unknown * * * ''Cephalodiscus calciformis'' Emig, 1977 * * * ''Cephalodiscus densus'' Andersson 1907 * * * ''Cephalodiscus dodecalophus'' McIntosh 1882 * * * ''Cephalodiscus evansi'' Ridewood * * * ''Cephalodiscus fumosus'' John, 1932 * * * ''Cephalodiscus gilchristi'' Ridewood, 1908 * * * ''Cephalodiscus gracilis'' Harmer 1905 * * * ''Cephalodiscus graptolitoides'' Dilly 1993 * * * ''Cephalodiscus hodgsoni'' Ridewood, 1907 * * * ''Cephalodiscus indicus'' Schepotieff 1909 * * * ''Cephalodiscus kempi'' John, 1932 * * * ''Cephalodiscus levinsoni'' Harmer 1905 * * * ''Cephalodiscus nigrescens'' Lankester 1905 * * * ''Cephalodiscus rarus'' Andersson, 1907 * * * ''Cephalodiscus sibogae'' Harmer 1905 * * * ''Cephalodiscus solidus'' Andersson, 1907
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「Cephalodiscida」の詳細全文を読む
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