Crab

A crab is any of various crustaceans with four pairs of legs, a pair of pincers, a flattish shell, and a short, broad abdomen folded under its thorax.

• Purse crab
• Fiddler crab
• Mole crab
• Horshoe crab
• Lady crab
• Oyster crab
• Spider crab
• Stone crab
• Ghost crab
• Hermit crab
• Blue crab

Several similar animals, such as the crab louse, or the hermit crab, are also called crabs.

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"Crabs" is a slang term for pubic lice.

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A crab is any of various machines used to hoist heavy objects.