Callinectes (from Ancient Greek κάλλος (kállos), meaning "beautiful", and νήκτης (nḗktēs), meaning "swimmer") is a genus of crabs containing species such as the Atlantic blue crab C. sapidus.
Species
{| class="wikitable"
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! Image !! Scientific name !! Common name !! Distribution
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| ||Callinectes affinis || || Brazil
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| ||† Callinectes alabamensis ||
|
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|120px ||Callinectes amnicola || || Cape Verde Islands and Mauritania to Angola.
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|120px ||Callinectes arcuatus || ||Pacific coast of Central America.
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|120px||Callinectes bellicosus || ||Mexico
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|120px ||Callinectes bocourti || || Jamaica and Belize south to Brazil
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|120px ||Callinectes danae || || Brazil and the West Indies.
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| ||† Callinectes declivis || ||
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|120px ||Callinectes exasperatus || rugose swimming crab|| western Atlantic Ocean.
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| ||† Callinectes jamaicensis || ||
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| ||Callinectes larvatus || ||
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|120px ||Callinectes marginatus || ||the Cape Verde Islands and Nouadhibou, Mauritania to Angola.
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| ||Callinectes megas ||Giant blue crab ||Japan
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|120px ||Callinectes ornatus || || western Atlantic Ocean, as well the Caribbean coastlines.
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| ||Callinectes pallidus || ||Mauritania to Angola.
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| ||† Callinectes paraensis || ||
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| ||† Callinectes quiloensis || ||
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|120px ||Callinectes rathbunae || || warm coastal waters of Mexico.
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| ||† Callinectes reticulatus || ||
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|120px ||Callinectes sapidus ||Chesapeake blue crab || western Atlantic Ocean and the Gulf of Mexico
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|120px ||Callinectes similis || lesser blue crab or dwarf crab||Western Atlantic Ocean, Caribbean Sea and Gulf of Mexico from the United States to Colombia.
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|120px ||Callinectes toxotes || ||Eastern Pacific
|}