Name: Heterocyathus

Functional Group: Hard coral

Default Short Code: Heterocya

Verified: Yes Verified
Popularity: 0%

Stats: Used in 6 sources and for 0 annotations



This genus has one recognised species: Heterocyathus aequicostatus
Sometimes zooxanthellate. Corals are solitary, free-living, and have a flat base. They have a commensal relationship with a sipunculid worm (Aspidosiphon corallicola) which moves the coral about on soft substrates and prevents it from becoming buried. Tentacles are usually extended only at night. Larvae initially settle on a microgastropod shell which they usually envelop during subsequent growth. Corals have only one corallite which is circular. They have prominent costae.
Colour: Pale brown, often with a greenish oral disc.
Habitat: Always found on soft horizontal substrates at depths of 20 metres or more, usually in association with Heteropsammia cochlea and the fungiid Cycloseris cyclolites.
Abundance: May be locally abundant (commonly 40 individuals per square metre).
For more information see: https://coral.aims.gov.au/info/structure-colony.jsp https://coral.aims.gov.au/info/factsheets.jsp

Used in these sources:

Benthic Genus Level | CU Project | Maldives ACA | Settlment&Recruitment |

Create Date: Oct. 4, 2018, 1:40 a.m.

Created By: Chico

Example Patches: