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・ Hemigrammocharax
・ Hemigrammocypris rasborella
・ Hemigrammopetersius
・ Hemigrammus
・ Hemigrammus bleheri
・ Hemigrammus erythrozonus
・ Hemigrammus pulcher
・ Hemigrammus ulreyi
・ Hemigrapha
・ Hemigraphiphora
・ Hemigraphis
・ Hemigraphis repanda
・ Hemigrapsus
・ Hemigrapsus crenulatus
・ Hemigrapsus estellinensis
Hemigrapsus oregonensis
・ Hemigrapsus penicillatus
・ Hemigrapsus sanguineus
・ Hemigrapsus sexdentatus
・ Hemigrapsus takanoi
・ Hemigrotella
・ Hemigryllus
・ Hemigymnodes
・ Hemigymnus
・ Hemigymnus melapterus
・ Hemihedrite
・ Hemihelix
・ Hemihoplites
・ Hemihoplitidae
・ Hemihyalea


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Hemigrapsus oregonensis : ウィキペディア英語版
Hemigrapsus oregonensis

''Hemigrapsus oregonensis'' is a small shore crab of the family Varunidae; it was formerly classified under the family Grapsidae. It is known under several common names, including ''yellow shore crab'', ''hairy shore crab'', ''green shore crab'', ''mud-flat crab'', and ''Oregon shore crab''.〔(【引用サイトリンク】title=''Hemigrapsus oregonensis'' (Green Shore Crab, Hairy Shore Crab, Mud-Flat Crab, Oregon Shore Crab, Yellow Shore Cab, Yellow Shore Crab, Yellow Shore Crab) )
Despite its name, the body color of this crab can vary. Often, it has a light grey, green or yellow carapace with small blue/black spots and lighter colored legs with similar spots, but it may be red/brown with green spots.〔(【引用サイトリンク】title=''Hemigrapsus oregonensis'' )〕 The legs with claws (chelipeds) are usually cream/white with no spots.
This species typically lives in mud flats and can be found in large numbers in the San Francisco Bay, and coastal areas of Oregon and Washington states in the United States.〔 Its diet primarily consists of diatoms and green algae, but it will occasionally eat meat.〔
Although closely related, the adult ''H. oregonensis'' is smaller () than the purple shore crab, ''H. nudus''. It can be distinguished from ''H. nudus'' by observing the legs and claws – the legs of ''H. oregonensis'', but not ''H. nudus'', are covered in many hairs called setae, while the claws of ''H. nudus'', but not ''H. oregonensis'', are covered in purple or red spots.〔
==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「Hemigrapsus oregonensis」の詳細全文を読む



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