seen? This spotted moon crab is commonly encountered on
our shores. Sandy silty shores, especially near seagrasses. It is
more active at night and is rarely seen by daytime visitors as it
is then often buried in the sediments. 'Lunaris' in Latin refers to
Body width 3-8cm. Body rather circular, with a pair of
long spikes on the sides. There are six large smooth bumps in the
middle of the body, the bumps are sometimes but not always highlighted
by body patterns. Colours beige to yellow with little maroon dots
evenly sprinkled on the body surface, sometimes highlighting the six
bumps. Pincers short, sturdy, held against the body to form a somewhat
box-like shape. All walking legs end in paddle-shaped tips and used
to skim along the sea bottom and also like spades to rapidly burrow
into the sand. Some may have large dark blotches on the paddles, with
smaller dark spots on the legs.
Changi, Apr 05
Sisters Island, Oct 06
bumps in the middle of the body.
Changi, Jul 07
moon 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. (Online
PDF on the Raffles Bulletin of Zoology website).
- Jones Diana
S. and Gary J. Morgan, 2002. A Field Guide to Crustaceans of
Australian Waters. Reed New Holland. 224 pp.