Wednesday, February 22, 2017

Separate walls – Plocoid


(Types of corallite arrangement)

Where each corallite has its own wall, separate from the neighbouring corallites, the colony is said to be plocoid. The genus Favia (p.10 of the Coral Finder) has separate walls.

When corallites have discrete separated walls they are termed plocoid - clockwise from top left: Favia, Favia, Turbinaria & Cyphastrea.

For many corals the corallite wall defines and separates corallites - here the genus Favia shows separate corallite walls.

The sinuous, separate walls of this flabello-meandroid Euphyllia are often hidden completely by its tentacles.