The Seychelles Islands archipelago,
situated in the western Indian Ocean, consists of 115 islands scattered
around in a large area of kmē. The central islands are granitic. Others
are coral islands and some atolls are present as well.
Different habitats such as mangroves,
mudflats, rocky shores and sandy beaches are home to numerous crabs adapted
more or less to the life outside water. Most of the crabs inhabit different
habitats or live on the edges of one habitat to the other.
Crabs living in rocky pools
or shallow coral or crabs living in mangroves but mostly in the water cannot
be generally classified as terrestrial, but are adapted to survive short
or longer periods in dry conditions. They are included in this site.
Habitats can generally be classified as following :
Bush close but behind
the beach, sandy soil
Brackish water pool at Grand Anse. The mangrove area is behind the pool.
Shallow and intertidal
Description : The reef is submerged under the sea and is only above
the water level during short periods of low tide.
Islands : Present on almost all islands.
Species found : Petrolysthes
lamarcki, Calappa calappa, .
Description : Small freshwater rivers
Islands : Only granite islands : Mahe, Praslin, Silhouette, La Digue
Species found : Seychellum alluaudi, Sesarma impressum