Fat-armed
jellyfish
Catostylus sp.
Family Catosylidae
updated
Sep 2025
Where
seen? This large jellyfish is sometimes seen on some of our shores. Usually alone, not in groups of many individuals.
Features: Bell about 10cm in diameter with fat sausage-like oral arms. The arms
do not have a long 'tail'.
Status and threats: There is inadequate information as at 2024 to make an informed assesment of its conservation status in Singapore. |
Fat-armed
jellyfishes on Singapore shores |
Other sightings on Singapore shores |
Tanah Merah,
Dec 10
Photo shared by Loh Kok Sheng on his
blog. |
Lazarus Island, Mar 16
Photo shared by Jonathan Tan on facebook. |
|
Acknowlegement
With grateful thanks to Dr
Michael N Dawson of the University of California, Merced for identifying
this jellyfish.
Links
- Checklist of Cnidaria (non-Sclerectinia) Species with their Category of Threat Status for Singapore by Yap Wei Liang Nicholas, Oh Ren Min, Iffah Iesa in G.W.H. Davidson, J.W.M. Gan, D. Huang, W.S. Hwang, S.K.Y. Lum, D.C.J. Yeo, May 2024. The Singapore Red Data Book: Threatened plants and animals of Singapore. 3rd edition. National Parks Board. 663 pp.
- The
Scyphozoan website by Dr Michael N Dawson: lots of info about
jellyfishes in Class Scyphozoa.
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