Stelletta grubei skeleton

Stelletta grubei skeleton

Choristid From the Order Choristida (replaced by Astrophorida in the classification scheme used in this Guide). The type of skeletal architecture distinguished by predominantly radiate, occasionally confused, arrangements of megascleres including triaenes with cladomes outward, by lack of spongin, and commonly by a cortex. Stelletta grubii showing part of the cortex.