翻訳と辞書 Words near each other ・ Track (disk drive) ・ Track (rail transport) ・ Track 10 ・ Trachyliopus affinis ・ Trachyliopus albosignata ・ Trachyliopus androyensis ・ Trachyliopus annulicornis ・ Trachyliopus fairmairei ・ Trachyliopus forticornis ・ Trachyliopus fulvosparsus ・ Trachyliopus fuscosignatus ・ Trachyliopus minor ・ Trachyliopus multifasciculatus ・ Trachyliopus pauliani ・ Trachyliopus subannulicornis ・ Trachymedusae ・ Trachymela ・ Trachymene ・ Trachymene incisa ・ Trachymetopon ・ Trachymyrmex ・ Trachymyrmex septentrionalis ・ Trachynautilus ・ Trachyodynerus ・ Trachypachidae ・ Trachypachus ・ Trachypedoula ・ Trachypepla euryleucota ・ Trachypepla roseata ・ Trachypepla semilauta Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Trachymedusae ： ウィキペディア英語版 Trachymedusae The Trachymedusae are an order in the cnidarian class Hydrozoa. They contain some 50 species, divided among about 30 genera and five families, of which the Rhopalonematidae are by far the most diverse. They only reproduce sexually as medusae, never forming polyps.〔Schuchert (2005)〕 It is not known with certainty whether the group as delimited here is indeed monophyletic. Predominantly living in the deep open oceans, they are small medusae with hemispherical to heightened bells that have a smooth and straight margin of thick tissue with ample nematocysts. They have four, six, eight, or more radial canals, with eight being most common. The gonads are borne at the radial canals or where these meet the manubrium. The statocysts are of mixed tissue from both endoderm and ectoderm. Their cnidome can include stenoteles.〔 Families:〔 * Geryoniidae * Halicreatidae * Petasidae * Ptychogastriidae * Rhopalonematidae ==References== * Schuchert, Peter (2005): (The World Hydrozoa Database ) - (Order Trachymedusae Haeckel, 1879 ). Retrieved 2014-MAY-14. 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「Trachymedusae」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.