CONTENTS
Flora index
Fauna index
guide to the mangroves of singapore
Molluscs
Peter K L Ng and N Sivasothi (editors)
 
Lokan
Polymesoda expansa
Family Corbiculidae


This large, heavy bivalve formerly known as Geloina expansa is found buried in the stiff mud of the landward fringe of mangroves.

It is well-adapted to this habitat, being able to tolerate long periods of low tide, and has the ability to resume filter-feeding rapidly when inundated.

<<Back to molluscs

close-ups of empty shells
External (top) and
internal (bottom) surfaces
of the left valve of
Polymesoda expansa
Shell length 9 cm

What is mangrove?
Introduction

The Ecosystem

Abiotic
Biotic

Value
Intro
Products
Indirect uses
Potential uses

About Mangroves
in Singapore

History
Mangroves to visit
Conservation
 
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