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Sea
slaters
Ligia
sp.
Family Ligiidae
updated
Oct 10
if you
learn only 3 things about them ...
They are NOT insects! They are more like crabs.
They have seven pairs of legs and move very quickly.
They
are scavengers. |
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Where
seen? These nervous little animals are commonly seen on
almost all our shores, often swarming in large numbers at low tide.
They are common on rocky shores, also among mangroves.
What are sea slaters? Sea slaters
are sometimes called sea cockroaches. Although sea slaters are also
arthropods, they
are not insects! They are crustaceans
like crabs and prawns; but are very happy out of water.
Features: 2-7cm. Sea slaters have seven pairs of legs and
move very fast! They have huge eyes and very long antennae. They are
well adapted for life out of water, breathing air directly through
'pseudo-lungs'. In fact, they will drown if kept under water!
What do they eat? Sea slaters
are scavengers, nibbling on whatever recently died on the rocky shore.
At low tide, they swarm over the rocks and shore looking for the recent
dead.
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On a mangrove tree trunk, a slater party?
Kranji, Jun 06

...with hanky panky going on?
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| Slater
babies: Like many other crustacea, sea slaters
can only mate just after the female moults. They brood their
young in special pouches. The young are released as miniature
adults instead of free-swimming larvae. |
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Empty
skin left behind after a moult?
Sisters Island, Jul 06
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Body very flat.
Labrador, May 09
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Sea
slaters on Singapore shores

Sentosa, Oct 04
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Links
References
- Edward E.
Ruppert, Richard S. Fox, Robert D. Barnes. 2004.Invertebrate
Zoology
Brooks/Cole of Thomson Learning Inc., 7th Edition. pp. 963.
- 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.
- Jones Diana
S. and Gary J. Morgan, 2002. A Field Guide to Crustaceans of
Australian Waters. Reed New Holland. 224 pp.
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