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Phylum Echinodermata > Class Stelleroida > Subclass Asteroidea
Galloping sea star
Stellaster childreni

Family Goniasteridae
updated Jul 2020
Where seen? This sea star was seen once on Sentosa. Previously recorded from trawls in the Johor Straits and off the Southern Islands. It is broadly distributed in the Indo-Pacific from East Africa to Australia and southern China and Japan. According to Marsh and Fromont, it is found on mud or muddy sand in Austrlia. It was previously called Stellaster equestris.

Features: Diameter with arms about 8cm. It has long skinny arms with large smooth marginal plates on the edges and sparse short stumpy spines. The underside is white and smooth with colourful markings. It has short tube feet tipped with suckers. As its common name suggests, it does indeed 'gallop', moving in a series of jerks or leaps through synchronised stepping action of its tube feet.

Where seen? According to Marsh and Fromont, the stomach has been seen filled with sand, mud and foraminfera.

Pulau Semakau, Aug 11


Sentosa, Apr 10
 

Pale underside with colourful markings

Tube feet with sucker tips.
 

Galloping sea stars on Singapore shores
On wildsingapore flickr

Links

References

  • Loisette M. Marsh and Jane Fromont. Field Guide to Shallow Water Seastars of Australia. 2020. Western Australian Museum. 543pp.
  • Lane, David J.W. and Didier Vandenspiegel. 2003. A Guide to Sea Stars and Other Echinoderms of Singapore. Singapore Science Centre. 187pp.
  • Didier VandenSpiegel et al. 1998. The Asteroid fauna (Echinodermata) of Singapore with a distribution table and illustrated identification to the species. The Raffles Bulletin of Zoology 1998 46(2): 431-470.
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