True crabs are decapod crustaceans of the infraorder Brachyura, which typically have a very short projecting "tail" (Greek: βραχύς / brachys = short, οὐρά / οura = tail), or where the reduced abdomen is entirely hidden under the thorax. Many other animals with similar names – such as hermit crabs, king crabs, porcelain crabs, horseshoe crabs and crab lice – are not true crabs.
Crabs are generally covered with a thick exoskeleton, and armed with a...
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Scientific name:
- Brachyura
Rank:
Lower classifications:
- Cyclodorippoidea ,
- Homoloidea ,
- Raninoidea ,
- Dorippoidea ,
- Majoidea ,
- Parthenopoidea ,
- Cancroidea ,
- Portunoidea ,
- Xanthoidea ,
- Grapsoidea
Also known as:
- Crustaceans, crab, queen, raw
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