| Contents | Classes | Subclasses | Orders | Families |
Family DISCOMORPHELLIDAE Corliss, 1960
| For | Discomorphidae [for Ctenostom [at] idae] |
Body discoidal, smooth in outline except for prominent anterior spine(s) and protruding "ciliary stripe" overhanging buccal cavity; posteriorly, several conspicuous cirri and a single spine; macronucleus single; found in fresh water, under polysaprobic conditions.
| Discomorphella Corliss, 1960 (for Discomorpha). Single species (possibly with several varieties or races). |