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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Tetragnatha ： ウィキペディア英語版 Tetragnatha ''Tetragnatha'' is a genus of spiders containing hundreds of species. They are found all over the world, although most occur in the tropics and subtropics. They are commonly called ''stretch spiders'', referring to their elongated body form. When disturbed they will stretch their front legs forward and the others in the other direction, thus being able to hide on blades of grass or similar elongated substrates. They are able to run over water. The name Tetragnatha is derived from Greek, "tetra" is a numerical prefix that refers to four and "gnatha" meaning "jaw". One of the biggest and most common species is ''T. extensa'', which has a holarctic distribution. It can be found near lakes, river banks or swamps. In the stratum of reed, tall grass or minor trees and shrubs those habitats are sometimes literally ruled by thousands of individuals of the stretch spiders who build their radial nets with sticky silk. A shift to cursorial behavior in the Hawaiian ''Tetragnatha'' species seems to have occurred very early on arrival of the ancestor on the island chain. ==References== 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「Tetragnatha」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.