Bordered
sea star
Craspidaster hesperus
Family
Astropectinidae
updated Jul 2020
Where
seen? This beautiful sea star is sometimes seen on Beting Bronok. 'Craspedo'
means border or edge. According to Lane, this sea star is seen from
the Bay of Bengal to China and southern Japan. According to Marsh and Fromont, it is seen on muddy sand or mud in Australia.
Features: Diameter with arms about
10cm. A flat sea star with five elegant smooth tapered arms. Upper surface
pale blue sometimes beige, and covered with special flat-topped, pillar-like structures
called paxillae. The body edges are bordered with large, wide marginal
plates. Underside pale without markings, tube feet are pointed (not tipped with suckers).
What does it eat? According to Marsh and Fromont, it probably eats microscopic life found in the silt and sand. |
Beting Bronok,
Jul 08 |
Paxillae cover
the upper body. |
|
Underside.
|
Pointed tube
feet.
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|
Bordered
sea stars on Singapore shores |
Other sightings on Singapore shores |
Beting Bronok, Jun 16
Shared by Jianlin Liu on facebook. |
Beting Bronok, Jun 17
Shared by Marcus Ng on facebook. |
Beting Bronok, Jun 18
Shared by Loh Kok Sheng on facebook. |
East Coast Park, Feb 09
Shared by Loh
Kok Sheng on his
blog. |
Beting Bronok, Jul 14
Shared by Loh
Kok Sheng on his
blog. |
Beting Bronok, Jun 16
Shared by Jianlin Liu on facebook. |
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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