Family LEMBADIONIDAE Jankowski, n. fam.

Unique in extensiveness of buccal caviry, occupying nearly entire ventral surface; buccal ciliature, however, reduced to large "membrane" on left and modest one on right, though infraciliature (and its fibrillar system) rather complex; body fully ciliated, often with tuft of longer cilia caudally; single contractile vacuole.

[Jankowski (1967a) proposed the familial name, but with no description or characterization; I am crediting him with the group, but as of the date of the present work.]

Lembadion Perty, 1849. Several species.