(class Ciliatea, order Hymenostomatida)
A suborder of ciliate Protozoa in which body cilia usually are sparse. Usually there is a single, prominent, caudal cilium. A conspicuous row of oral cilia, constituting an ‘undulating membrane’, extends from one side of the cell. Pleuronematina are found in marine or freshwater aquatic environments.
Subjects: Zoology and Animal Sciences.