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Libinia dubia
''Libinia dubia'', the longnose spider crab, is a species of crab in the family Epialtidae. It is found in shallow waters on the eastern coast of North America.
==Description==
The carapace of the longnose spider crab is nearly circular in outline. The shell grows to an average diameter of with the males being larger than the females. There are about six spiny protuberances on each edge of the shell and another six down the midline. The upper surface is covered with short setae (bristles) which are hooked and resemble velcro. To these the crab sticks pieces of seaweed and other organisms as camouflage.〔 There are two small stalked eyes and between these the carapace extends forward in a forked rostrum. There are five pairs of long, thin, jointed walking legs. The front pair end in rather small pincers and the terminal joint of the others legs is a curved claw. The longnose spider crab may be confused with the portly spider crab, ''Libinia emarginata'', but that species usually has nine spines on the margin at each side of the shell.〔(【引用サイトリンク】title=''Libinia dubia'': Longnose spider crab )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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