The Collaborative International Dictionary of English v.0.48:

Annuloida \An`nu*loid"a\, n. pl. [NL., fr. L. annulus ring +
   -oid.] (Zool.)
   A division of the Articulata, including the annelids and
   allied groups; sometimes made to include also the helminths
   and echinoderms. [Written also Annuloidea.]
   [1913 Webster]