Crab

The term crab is often applied to several different groups of short (nose to tail) decapods with thick exoskeletons, but only members of the Brachyura are true crabs; other taxa, such as hermit crabs, porcelain crabs, king crabs, and horseshoe crabs are, despite superficial similarities, not crabs at all. Hermit crabs, king crabs and porcelain crabs belong to the Anomala and can be distinguished from true crabs by counting the legs - in Anomala, the last pair of pereiopods (walking legs) is hidden inside the carapace and so only four pairs are visible (counting the claws), whereas uninjured true crabs always have five visible pairs.

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Decapod: Several things share the name decapod, from the Greek decapoda meaning "ten-legged":...

Brachyura: REDIRECT Crab...

Hermit crab: CoenobitidaeDiogenidaeLithodidaePaguridaeParapaguridaePylochelidaeHermit crabs are decapod crustaceans of the superfamily Paguroidea, distinct from the true crabs in the infra-order Brachyura. Most hermit crabs salvage empty seashells to shelter and protect their soft abdomens. There are about five ...

Crab related Images and Photos (experimental)

Hermit Crab	Fiddler Crab	The Crab Shack	Antique Crab II
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"Deadliest Catch ""Crab Count"" T-Shirt - Navy"	Blue Claw Crab on Dock	Ghost Crab Scuttling near Foamy Surf	Deadliest Catch Crab & Logo Mug