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Purple shore crab : ウィキペディア英語版 | Purple shore crab
The purple shore crab, ''Hemigrapsus nudus'', is a common crab of the family Varunidae. It can be found sheltering under rocks in inter-tidal areas along the west coast of North America, from Alaska to Baja California in Mexico. This crab primarily eats sea lettuce and other green algae, and occasionally scavenges dead animals.〔(【引用サイトリンク】title=''Hemigrapsus nudus'' The Purple Shore Crab )〕 ==Description== A small crab, ''H. nudus'' reaches sizes of approximately .〔 Its dorsal shell (carapace) is generally a dark purple in color, although it may be olive green or red, with white or cream markings. The color of the legs matches the color of the carapace but the white-tipped claws (chelipeds) are a lighter color with purple or red spots – these spots allow ''H. nudus'' to be distinguished from a similar looking crab, the lined shore crab, ''Pachygrapsus crassipes'', whose chelipeds lack spots. The legs of ''H. nudus'' lack setae, a distinguishing feature of the otherwise similar ''H. oregonensis''.
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「Purple shore crab」の詳細全文を読む
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