Dictionary.net

An order of Infusoria having the body armed with somewhat stiff, tubular processes which they use as suckers in obtaining their food. They are usually stalked.

Same as Rhizocephala.

A class of ciliate protozoa. Prominent cytopharyngeal apparatus is characteristic of this class as is only a slight distinction between oral and somatic cilia.

Animals provided with mouths for sucking. Also, organs for sucking or adhesion, - hence termed suctorial- as 'suctorial oscula.'