corallimorphs text index | photo index
Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Corallimorpharia
Stubby corallimorph
Ricordea yuma
Family Ricordeidae
updated Nov 2019

Where seen? These little disk-shaped animal with stubby tentacles is sometimes encountered on our Southern shores, among coral rubble.

Features: Each polyp about 3-4cm in diameter, sometimes seen in groups of 5-10. Tentacles short and stubby, arranged in rows radiating from the centre. The edge of the oral disk is fringed with somewhat long stubby tipped tentacles. The mouth is usually held upturned and is then quite prominent. Colours seen include brown, green and blue.

A study found that Stubby corallimorphs can also look like Beaded corallimorphs (Discosoma nummiforme).

Kusu Island, Jun 05

Pulau Hantu, Aug 04

Sisters Island, Jul 04

St. John's Island, May 07

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

Stubby corallimorphs on Singapore shores
On wildsingapore flickr

Other sightings on Singapore shores

Cyrene Reef, May 13
Photo shared by Marcus Ng on flickr.

Terumbu Hantu, Jun 2016
Photo shared by Marcus Ng on facebook.


  • Corallimorpharia on The Biodiversity of Singapore website, Lee Kong Chian Natural History Museum.


  • 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.
links | references | about | email Ria
Spot errors? Have a question? Want to share your sightings? email Ria I'll be glad to hear from you!
wildfactsheets website©ria tan 2008