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Black
sea urchin
Temnopleurus toreumaticus
Family Temnopleuridae
updated Apr 2020
Where
seen? This black sea urchin with short spines is commonly seen on some of
our Northern shores. Large heaps of many individuals are sometimes
seen. At other times, there are none to be seen. Sandy areas near
seagrasses as well as coral rubble and rocky shores and under jetties.
Features: Body diameter 4-5cm,
sometimes tiny ones about 1cm in diameter are seen among seaweeds.
Short slender spines (1-2cm) with long translucent tube feet that
may extend past the spines. The spines on the upperside are black
and pointed. Spines on the underside are flattened and may be banded.
Some have obvious light-coloured zig-zag lines radiating from the
centre around the body. The sea urchin appears to 'carry' shells and
other debris. This behaviour may help camouflage it or shield it from
sunlight.
May be confused with the Long-spined
black sea urchin (Diadema sp.) which has much longer spines
and is not often seen on the Northern shores.
Prickly Home: Sometimes, an Urchin-mouth worm is seen curled around the mouth of the sea
urchin. |
Changi, May 05 |
Zig-zag lines on the upperside.
With long tube feet. |
Sometimes found in large groups.
Changi, Jul 04 |
Underside.
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Worm-like animal often seen around the
mouth.
Changi, Jun 05
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Carrying a shell.
Changi, Aug 19
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Black
sea urchins on Singapore shores |
Other sightings on Singapore shores |
Changi Lost Coast, Jun 22
Photo shared by Loh Kok Sheng on facebook. |
Changi East (Lost Coast), Jul 24
Photo shared by Kelvin Yong on facebook.
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Beting Bronok,
Jun 10 |
Photo shared by Toh Chay Hoon on her
blog. |
East Coast,
May 08
Photo shared by Loh Kok Sheng on his
blog. |
Temnopleurus
species recorded for Singapore
from Wee
Y.C. and Peter K. L. Ng. 1994. A First Look at Biodiversity in
Singapore.
^from WORMS
+Other additions (Singapore Biodiversity Records, etc)
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+Mespilia globulus (Globe urchin)
Temnopleurus mortenseni=^Temnopleurus toreumaticus
Temnopleurus toreumaticus
Temnopleurus siamensis=^Temnotrema siamense? |
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Links
References
- Jeffrey K. Y. Low. 29 May 2015. Globe urchin in the Singapore Strait, Mespilia globulus. Singapore Biodiversity Records 2015: 65
- Lane, David
J.W. and Didier Vandenspiegel. 2003. A Guide to Sea Stars and
Other Echinoderms of Singapore. Singapore Science Centre.
187pp.
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