Suborder (3) Armophorina Jankowski, 1964

Syn.	Armophorida

Body generally small, top-shaped (often with very long caudal spine), with somatic ciliature absent except for caudal tuft and several anteriorly located cirri; buccal ciliature (accompanied by a "ciliary stripe") extensive, encircling body and spiraling posteriad, with cytostome thus near antapical pole; pellicle rigid; large ovoid macronucleus, multiple in several species; free living polysaprobic forms, typically in fresh-water habitats.