Flora index
Fauna index
guide to the mangroves of singapore
Peter K L Ng and N Sivasothi (editors)
  Mangrove hermit crab
Diogenes sp.
Family Diogenidae

Size: up to 2 cm

There are several species of hermit crabs in and around the mangroves and are easily spotted by looking for fast-moving snail shells that rock back and forth instead of gliding smoothly over the mud!

Diogenes is common and occurs in the more open and uncovered areas of the mangroves, often nearer the seafront at the edge of sandy areas. Like most hermit crabs, they are scavengers, with a good sense of smell.

close-up of hermit crab face
The face of Diogenes,
as it emerges from its host-shell

close-up of hermit crab without a shell
Exposed body of Diogenes
showing the soft abdomen
Another common mangrove genus, Clibanarius, is easily identified by its blue-striped legs.

Unlike typical crabs, the posterior part of hermit crab bodies is soft and as such, they use discarded shells for protection. As they grow larger, the crabs look for and move into larger shells.

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What is mangrove?

The Ecosystem


Indirect uses
Potential uses

About Mangroves
in Singapore

Mangroves to visit
From "A Guide to Mangroves of Singapore", Peter K. L. Ng and N. Sivasothi (editors)
Volume 1: The Ecosystem and Plant Diversity and Volume 2: Animal Diversity
Authors: Kelvin K. P. Lim, Dennis H. Murphy, T. Morgany, N. Sivasothi, Peter K. L. Ng,
B. C. Soong, Hugh T. W. Tan, K. S. Tan & T. K. Tan
BP Guide to Nature Series published by the Singapore Science Centre, sponsored by British Petroleum
2001 Raffles Museum of Biodiversity Research, The National University of Singapore & The Singapore Science Centre