Annulata \An`nu*la"ta\, n. pl. [Neut. pl., fr. L. annulatus
ringed.] (Zool.)
A class of articulate animals, nearly equivalent to
{Annelida}, including the marine annelids, earthworms,
Gephyrea, Gymnotoma, leeches, etc. See {Annelida}.
[1913 Webster]