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Phylum Cnidaria > Class Hydrozoa | jellyfish
Thread-tentacled jellyfish
Aequorea sp.
Family Aequoreidae
updated Aug 2025
Where seen? This small jellyfish sometimes seen on stranded on our shores. Several may be seen, and then none seen again for some time.

Features: Bell about 5-8cm, long thin thread-like tentacles from the edges of the bell 10-15cm long. Bell has radiating white patterns. Those washed ashore look like blobs of jelly.

Status and threats: There is inadequate information as at 2024 to make an informed assesment of its conservation status in Singapore.

Tuas, Apr 04


Washed ashore.
Chek Jawa, Apr 02
Chek Jawa, Oct 07

*Species are difficult to positively identify without close examination.
On this website, the animals are grouped by external features for convenience of display.

Thread-tentacled jellyfishes on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Pasir Ris Park, Jan 20
Photo shared by Kelvin Yong on facebook.

Pulau Sekudu, May 25

Photo shared by Loh Kok Sheng on facebook.
Beting Bronok, Jun 10
Photo shared by Loh Kok Sheng on his flickr.


East Ciast PCN, Jun 25
Photo shared by Adriane Lee on facebook.

Lazarus Island, Nov 19
Photo shared by Kelvin Yong on facebook.


Terumbu Semakau, Apr 26
Photo shared by Jianlin Liu on facebook.

Pulau Semakau North, Apr 17
Photo shared by Heng Pei Yan on facebook.

Terumbu Bemban, Apr 11
Photo shared by Loh Kok Sheng on his blog.

Family Aequoreidae recorded for Singapore
from 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.

  Family Aequoreidae
  Aequorea conica
Aequorea parva
Aequorea pensilis

Acknowlegement
Grateful thanks to Prof Michael N Dawson of the University of California, Merced for the identification.

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 Prof Michael N Dawson: lots of info about jellyfishes in Class Scyphozoa.
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