Planocarina maxima (Awerintzew, 1906) Kosakyan et al., 2016

Diagnosis: The shell is very large, elongated in plan view. From the middle of the fundus along its entire periphery there is a not very wide ridge with uneven edges. Aperture oval, surrounded by a lip of organic matter.

Dimensions: shell L: 280-385 µm.

Habitat: Sphagnum vegetation.

Distribution.