Infra-order Brachyura, Family Gecarcinidea​

The crabs of the family Gecarcinidea are the most conspicuous land crabs. All gecarcinids are terrestrial and are found throughout the Indo-Pacific region, particularly on islands, and in coastal areas of tropical and sub-tropical America and West Africa.
 

Three genera from this family are represented on Christmas Island: Gecarcoidea, Discoplax and Epigrapsus.

Red, Purple, Blue, Rugose, Orange-legged and Brown crabs

Photos by: Max Orchard

except where indicated