seen? This crab with paddling legs is sometimes
seen on our shores near mangroves and freshwater streams.
It is usually seen drifting on flotsam or seaweed. This particular
one was seen on top of a large piece of plastic.
Features: Body width 3-5cm. It
has a squarish body and flat legs. The last two pairs of legs are
paddle shaped and fringed with hairs. These allow the crab to paddle
for short distances. It is actually a freshwater crab but adults return
to the sea to hatch their eggs.
What does it eat? It is a scavenger.
Human uses: In many parts of Southeast
Asia, these little crabs are harvested as food. The females with eggs
are particularly relished.
|Paddler crabs on Singapore shores
- Ng, Peter
K. L. and Daniele Guinot and Peter J. F. Davie, 2008. Systema
Brachyurorum: Part 1. An annotated checklist of extant Brachyuran
crabs of the world. The Raffles Bulletin of Zoology. Supplement
No. 17, 31 Jan 2008. 286 pp.
- Lim, S.,
P. Ng, L. Tan, & W. Y. Chin, 1994. Rhythm of the Sea: The Life
and Times of Labrador Beach. Division of Biology, School of
Science, Nanyang Technological University & Department of Zoology,
the National University of Singapore. 160 pp.
- Wee Y.C.
and Peter K. L. Ng. 1994. A First Look at Biodiversity in Singapore.
National Council on the Environment. 163pp.