Belliidae is a family of crabs of the order Decapoda.
They respond to predators by hyper-extending all of their limbs and remain in this position a long time (Hazlett). Species Seven species belong to the family Belliidae : Acanthocyclus albatrossis Rathbun, 1898 Acanthocyclus gayi Lucas, 1844 Acanthocyclus hassleri Rathbun, 1898 Bellia picta H. Milne-Edwards, 1848 Corystoides abbreviatus A. Milne-Edwards, 1880 Corystoides chilensis Lucas, 1844 Heterozius rotundifrons A. Milne-Edwards, 1867
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