Crabs are crabcated crabs from Brachyura's infraord,known to have very short "tails" (Greek:brachy = short,ura = tail),or whose abdomen is completely hidden beneath the chest (thorax).The body of the crab is protected by a very hard shell,composed of chitin,and armed with a pair of claws.Ketam is another name for crab.
True crabs have five pairs of legs.the first pair of legs were modified into a pair of claws and not used for movement.In almost all crabs,except for a few (eg,Raninoida),the stomach is folded beneath the cephalothorax.The crab mouth portion is covered by a flat maxilliped,and the front of the carapace does not form a long rostrum.Crab gills are formed from flat plates (phyllobranchiate),similar to shrimp gills,but with different structures.
Crab is very tasty when cooked with noodles,which makes noodle soup added sweet so it feels on our tongue.
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