翻訳と辞書
Words near each other
・ Hexoplon albipenne
・ Hexoplon annulatum
・ Hexaplex pecchiolianus
・ Hexaplex princeps
・ Hexaplex radix
・ Hexaplex regius
・ Hexaplex rosarium
・ Hexaplex saharicus
・ Hexaplex stainforthi
・ Hexaplex trunculus
・ Hexaplex varius
・ Hexapod
・ Hexapod (robotics)
・ Hexapod-Telescope
・ Hexapoda
Hexapodidae
・ Hexapolis
・ Hexapora
・ Hexapora curtisii
・ Hexapradol
・ Hexaprenyl diphosphate synthase
・ Hexaprenyl diphosphate synthase (geranylgeranyl-diphosphate specific)
・ Hexaprenyl pyrophosphate synthetase
・ Hexaprenyl-diphosphate synthase ((2E,6E)-farnesyl-diphosphate specific)
・ Hexaprenyldihydroxybenzoate methyltransferase
・ Hexapropymate
・ Hexaprotodon
・ Hexapterella
・ Hexaptilona
・ Hexapus


Dictionary Lists
翻訳と辞書 辞書検索 [ 開発暫定版 ]
スポンサード リンク

Hexapodidae : ウィキペディア英語版
Hexapodidae

Hexapodidae is a family of crabs, the only family in the superfamily Hexapodoidea.〔 It has traditionally been treated as a subfamily of the family Goneplacidae, and was originally described as a subfamily of Pinnotheridae. Its members can be distinguished from all other true crabs by the reduction of the thorax, such that only seven sternites are exposed, and only four pairs of pereiopods are present. Not counting the enlarged pair of claws, this leaves only six walking legs, from which the type genus ''Hexapus'', and therefore the whole family, takes its name. Some anomuran "crabs", such as porcelain crabs and king crabs also have only four visible pairs of legs. With the exception of ''Stevea williamsi'', from Mexico, all the extant members are found either in the Indo-Pacific oceans, or around the coast of Africa.〔
==Fossil record==
In addition to the extant taxa, the family contains two genera known only from fossils – ''Goniocypoda'' and ''Palaeopinnixa'' – and two further genera include both living and fossil representatives: ''Hexapus'' and ''Stevea''.〔 The family's fossil record extents back certainly as far as the Paleocene, with unverified reports of a species in the Maastrichtian of Senegal.〔

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「Hexapodidae」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.