Category:Porifera

Po*rif"e*ra, n. pl. Etym: [nl., fr. L. porus pore + ferre to bear.] (zoöl.)

Defn: a grand division of the invertebrata, including the sponges; -- Called also spongiæ, spongida, and spongiozoa. The principal Divisions are calcispongiæ, keratosa or fibrospongiæ, and silicea.