Blue crab may refer to:
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Blue Crab 11
The Blue Crab 11, also called the Gloucester 11, is an American utility dinghy that can be rowed, used as a motorboat or as a sailing dinghy. It was designed by Harry R. Sindle and first built in 1971. The design is named for the family of cr ...
, an American sailboat design
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Callinectes sapidus
''Callinectes sapidus'' (from the Ancient Greek ,"beautiful" + , "swimmer", and Latin , "savory"), the blue crab, Atlantic blue crab, or regionally as the Chesapeake blue crab, is a species of crab native to the waters of the western Atlantic O ...
'' – Chesapeake or Atlantic blue crab of the West Atlantic, introduced elsewhere
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Cardisoma guanhumi'' – blue land crab of the West Atlantic
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Discoplax
''Discoplax'' is a genus of terrestrial crabs. It is very closely related to the genus ''Cardisoma''.
Five species are currently recognised:
*''Discoplax celeste'' 2012
*'' Discoplax gracilipes'' Ng & Guinot, 2001
*'' Discoplax longipes'' A. Mi ...
celeste'' – blue land crab of Christmas Island
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Paralithodes platypus
''Paralithodes platypus'', the blue king crab, is a species of North Pacific king crab which lives near St. Matthew Island, the Pribilof Islands, and the Diomede Islands, Alaska, with further populations along the coasts of Japan and Russia. Alt ...
'' – blue king crab of the North Pacific
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Portunus pelagicus
''Portunus pelagicus'', also known as the flower crab, blue crab, blue swimmer crab, blue manna crab or sand crab, ''rajungan'' in Indonesian, and ''alimasag'' in Tagalog, Kapampangan, and Pangasinan, is a large crab found in the intertidal estu ...
'' – blue swimmer crab of Australia and Southwest Pacific
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Portunus segnis
''Portunus segnis'', the African blue swimming crab, is a species of crustacean, a swimming crab belonging to the family Portunidae. While native to the western Indian Ocean, it is also invasive in the Mediterranean. It is thought to have come ...
'' - an Atlantic species, was recently recorded in Tunisian waters, where it is invasive
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Portunus trituberculatus'' – Japanese blue crab of the Northwest Pacific
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