Flame Box Crab

Calappa flammea

Carapace not more than five inches across. They inhabit sand flats and bury in the sand so they are not often observed. these pictures are in fact the discarded shell, not a living crab. They do serve the purpose for identification purposes,

Flame Box Crab - Calappa flammea
Flame Box Crab - Calappa flammea
Flame Box Crab - Calappa flammea