radiaria

from The Century Dictionary.

• In Lamarck's classification (1801–12), a class of animals, divided into the orders Mollia, or acalephs, and Echinoderma (the latter including the Actiniæ).
• In Owen's classification (1855), a subprovince of the province Radiata, containing the five classes Echinodermata, Bryozoa, Anthozoa, Acalephæ, and Hydrozoa.
• In H. Milne-Edwards's classification (1855), the first subbranch of Zoöphytes (contrasted with Sarcodaria), containing the three classes of echinoderms, acalephs, and corals or polyps.