|Crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (abdomen), usually entirely hidden under the thorax. They live in all the world's oceans, in fresh water, and on land, are generally covered with a thick exoskeleton and have a single pair of claws. Many other animals with similar names – such as hermit crabs, king crabs, porcelain crabs, horseshoe crabs and crab lice – are not true crabs.
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|Batwing coral crab||Dungeness crab||Edible crab|
|Fiddler crabs||Golden ghost crab||Helmet crabs|
|Horsehair crab||Japanese freshwater crab||Japanese spider crab|
|Light-blue soldier crab||Purple globe crab||Red-clawed crab|
|Red-streaked box crab||Ridged sponge crab||Sally Lightfoot crab|
|Striped shore crab||Swimming crabs||Winged kelp crab||Mud crabs|