Phylum Echinodermata > Class Echinodea > sea urchins
Black sea urchin
Temnopleurus toreumaticus
Family Temnopleuridae
updated Jan 14

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.

Sometimes found in large groups.
Changi, Jul 04

Changi, May 05


Worm-like animal around the mouth.

Zig-zag lines on the upperside.
With long tubefeet.

Black sea urchins on Singapore shores

Photos of Black sea urchins for free download from wildsingapore flickr

Distribution in Singapore on this wildsingapore flickr map

East Coast, May 08
Photo shared by Loh Kok Sheng on his blog.

Beting Bronok, Jun 10

Photo shared by Toh Chay Hoon on her 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)

  Family Temnopleuridae
  +Mespilia globulus (Globe urchin)

Temnopleurus mortenseni=^Temnopleurus toreumaticus
Temnopleurus toreumaticus
Temnopleurus siamensis=^Temnotrema siamense?

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