calicle

The whole system of dissepiments in any given calicle is often called endotheca.

The septa, radial plates of calcite reaching from the periphery nearly or quite to the centre of the coral-cup or calicle.

Tabulae are stout horizontal partitions traversing the centre of the calicle and dividing it into as many superimposed chambers.

In this coral the calicle is divided into quadrants by four principal septa, the main septum, counter septum, and two alar septa.