Worms: formerly including animals resembling the common earthworm, but having no exact classifieatory sense, and hence no standing in zoölogy.The sixth and last division of animals in the Linnean “SystemaNaturæ”(1766), defined as consisting of those animals which have tentacles, cold white blood, and an inaurieulate unilocular heart, and comprising all animals which Linnæus did not dispose under the five other classes Mammalia, Aves, Amphibia, Pisces, and Insecta (or vertebrates and insects).One of the eight primary divisions of the animal kingdom; a subkingdom or phylum, one of the leading types of animal life, comprising all those animals which have a body-cavity (Metazoa), no backbone (Invertebrata), normally an intestinal canal (which Cœlentera have not), not a radiate structure (which Echinodermata have), legs if any not jointed (they are always jointed in Arthropoda), and body vermiform if there are no legs.[lowercase] Plural of vermis.