Ball-tip
corallimorphs
Corynactis sp.
Family Corallimorphidae
updated
Jul 2024
Where
seen? This small animal with little balls at the tips of
its transparent tentacles is seen growing on hard surfaces. Rocks and coral rubble
in clusters of a few individuals. Sometimes seen on some of our shores.
Features: Diameter with tentacles extended 1.5-4cm. Tentacles many, long thin,
transparent with a ball-shaped tip that is usually white or a bright
colour. Body column smooth, colours seen include brown, orange,
red, pink, bright blue. Oral disk usually brown with whitish or paler centre. Central mouth conical, often pale and usually protruding even when the tentacles
are tucked into the body column.
Status and threats: There is inadequate information as at 2024 to make an informed assesment of its conservation status in Singapore. |
Chek Jawa, Jul 11
|
|
Conical mouth protruding.
|
Pulau Ubin, Dec 09
|
Changi, Oct 09
|
Pulau Ubin, Dec 10
|
*Species are difficult
to positively identify without close examination.
On this website, they are grouped by external features for convenience of
display.
Ball-tip
corallimorphs on Singapore shores |
Other sightings on Singapore shores |
Pulau Ubin, Jul 17
Photo shared by Loh Kok Sheng on facebook. |
Beting Bronok, Jul 19
Photo shared by Abel Yeo on facebook.
|
Sentosa Tg Rimau, Apr 21
Photo shared by Richard Kuah on facebook. |
Sentosa Serapong, May 23
Photo shared by Kelvin Yong on facebook. |
|
Cyrene Reef, Jun 10
Photo shared by James Koh on his
blog. |
Cyrene Reef, Aug 10
Shared
by Neo Mei Lin on her
blog. |
Seringat
Kias, Apr 12
Photo shared by Loh Kok Sheng on his
blog. |
Sisters Island,
Sep 10
Photo
shared by Toh Chay Hoon on her
blog. |
Pulau Hantu,
Oct 14
Photo
shared by Loh Kok Sheng on flickr. |
Terumbu Pempang Tengah, May 11
Photo shared by Sam Yeo on facebook. |
Tanah Merah, Aug 09
Photo shared by James Koh on his
blog. |
Pulau Senang,
Aug 10
Photo
shared by Loh Kok Sheng on his
flickr. |
Pulau Senang, Jun 10
Photo shared by Toh Chay Hoon on her
flickr. |
Pulau Berkas, Feb 22
Photo
shared by Toh Chay Hoon on facebook. |
|
|
Acknowledgement
Grateful thanks to Prof Daphne Fautin for identifying this animal
as a corallimorph. |
Links
- Corallimorpharia on The Biodiversity of Singapore website, Lee Kong Chian Natural History Museum.
References
- 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, 2024. The Singapore
Red Data Book: Threatened plants and animals of Singapore.
3rd edition. National Parks Board. 258 pp.
- Ren Min Oh, Mei Lin Neo, Nicholas Wei Liang Yap, Sudhanshi Sanjeev Jain, Ria Tan, Chaolun Allen Chen and Danwei Huang Citizen science meets integrated taxonomy to uncover the diversity and distribution of Corallimorpharia in Singapore, The Raffles Bulletin of Zoology Volume 67, Pp. 306-321.
|
|
|