Premise: Crabs are decapod crustaceans of the infraorder Brachyura , which typically have a very short projecting `` tail '' ( abdomen ) ( [ : wikt : βραχύς , βραχύς / brachys ] = short , [ : wikt : οὐρά , οὐρά / οura ] = tail ) , usually entirely hidden under the thorax . is a species of crab native to Japan , with a shell that bears a pattern resembling a human face which many believed to be the face of an angry samurai hence the nickname Samurai Crab .
Hypothesis: Heikegani is a species of decapod crustacean.
Label: ENTAILMENT