Gecarcoidea lalandii

Gecarcoidea lalandii is a large species of terrestrial crab. It is dark purple in colour, with long legs and short pincers. It is nocturnal, so spends most of the day hiding in burrows. Compared to the related G. natalis, G. lalandii is relatively widespread, being found in the Indo-Pacific from the Andaman Islands and eastwards.^[1] Adults mainly occur in forest, but can sometimes be found in more open habitats.^[1] When carrying eggs, females migrate to the coast, where they release the eggs in the tidal zone.^[1] Small adults sometimes fall prey to the crab Geograpsus crinipes.^[1]

Gecarcoidea lalandii
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Malacostraca
Order:	Decapoda
Suborder:	Pleocyemata
Infraorder:	Brachyura
Family:	Gecarcinidae
Genus:	Gecarcoidea
Species:	G. lalandii
Binomial name
Gecarcoidea lalandii H. Milne-Edwards, 1837