Classification
(master taxon) [(master rank)]Protoctista [kingdom]
Ciliophora [phylum]
Oligohymenophora [class]
Hymenostomata [subclass]
Scuticociliatida [order]
Pleuronematina [suborder]
Pleuronematidae [family]
Pleuronema [genus]
Pleuronema crassum [species]