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Hemigrapsus takanoi : ウィキペディア英語版 | Hemigrapsus takanoi
''Hemigrapsus takanoi'', the brush-clawed shore crab or Asian shore crab, is a small crab of the family Varunidae (formerly classified as Grapsidae) that lives on rocky shores surrounding the Pacific Ocean, and which is invasive along the European coastlines. This crab is omnivorous and eats small fish, invertebrates and algae. ==Description== Prior to 2005, the name ''Hemigrapsus penicillatus'' was used to cover animals that are now known to represent two distinct species. ''Hemigrapsus penicillatus'' (''sensu stricto'') has smaller patches of setae (bristles) on the chelae (claws) in males; ''Hemigrapsus takanoi'' has larger setal patches and larger coloured spots on the exoskeleton.〔 It can be a variety of colors, including orange-brown, maroon, or green, with striped legs and spotted claws. Male brush-clawed shore crabs have a patch of light brown or yellow bristles (known as setae) on their chelae (pincers). Their carapace width typically reaches about , and has three spines. Before developing into juvenile crabs, larval brush-clawed crabs spend almost one month floating in the ocean. This allows them to find food and new habitats.
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 takanoi」の詳細全文を読む
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