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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 Tachypleus gigas ： ウィキペディア英語版 Tachypleus gigas ''Tachypleus gigas'', one of the four extant species of horseshoe crab, is found in shallow water in Southeast Asia at depths to . It grows up to long and wide, and is covered by a sturdy carapace, with a long caudal spine (tail). ==Description== ''T. gigas'' has a "sage green" chitinous exoskeleton. In a sample of five individuals, Lazarus ''et al.'' recorded maximum and minimum total lengths of and , respectively.〔 The prosoma is the widest part of the animal, at and long, while the opisthosoma is wide and long.〔 The caudal spine (the long, pointed part of the tail) is long, bears a crest dorsally, and is concave ventrally.〔 The anterior part of the tail is sharply serrated. Males are smaller than females, have a paler and rougher carapace, and act as hosts to a greater number of epibionts.〔 The carapace which shields the prosoma also bears two pairs of eyes – a pair of simple eyes at the front, and a pair of compound eyes positioned laterally. In common with other horseshoe crabs, ''T. gigas'' also has ventral eyes near the mouthparts, and photoreceptors in the caudal spine. On its underside, ''T. gigas'' has seven pairs of legs, five of which bear small claws, and five pairs of book gills, which are used for gas exchange. 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「Tachypleus gigas」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.