corticata

from The Century Dictionary.

• A family of corals inhabiting a fixed, branching polypary, whose fleshy substance is spread like the branch of a tree over a central solid, calcareous, or corneous axis; the barked corals.
• A higher grade of Protozoa in Lankester's classification, as the Gregarinæ and Infusoria. , ,
• A division of the Porifera or sponges, represented by the genus Thetya.