myriozoidæ

from The Century Dictionary.

• A family of chilostomatous gymnolæmatous polyzoans having the zoarium incrusting or rising into foliaceous expansions, or dendroid, tho zoœcia calcareous with no membranous area or raised margins, and the orifice with a sinus on the lower lip. It includes several genera, among them being Myriozoum, Schizoporella, and Hippothoa.