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

Family Goniastridae
updated Apr 10

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.

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.

Sentosa, Apr 10
 

Pale underside with colourful markings

Tube feet with sucker tips.


Pulau Semakau, Aug 11

References
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