Discosoma nummiforme reaches 15 cm diameter. Indo-Pacific and Red Sea corallimorph (Discosomatidae) with flat circular disc body (neither true coral nor true anemone), highly variable colors fluorescent-green, turquoise-blue, purple, orange, brown, with small tentacular papillae scattered on disc instead of true tentacles. Lives from 3 to 25 m on coral and rocky reefs. Forms colonies by asexual reproduction. Hosts zooxanthellae. Very popular in reef aquaristics for colors under LED lighting. Sought-after macro dive photo subject for fluorescent colors under flash.
Photo of Umbrella corallimorph
Frequently asked questions
How big is the Umbrella corallimorph?
Umbrella corallimorph (Discosoma nummiforme) reaches 3–15 cm in length.
At what depth can you find the Umbrella corallimorph?
Umbrella corallimorph is found between 3–25 m deep.
Is the Umbrella corallimorph dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Umbrella corallimorph?
IUCN status: Least concern (LC).
Where can you find the Umbrella corallimorph?
Found in: Asian Pacific, Indian Ocean & Red Sea, Mediterranean.