Difflugia caucasica  Snegovaya & Alekperov, 2005

Diagnosis: Shell spherical, pseudostome sub-apical, without a collar. Shell wall formed by transparent polygonal plates. The cytoplasm is light green, granular. There are 1 or 2 long lobose pseudopodia. There are 5 to 7 contractile vacuoles.

Dimensions: According to Snegovaya and Alekperov (2005): Shell length 95—110 µm; width 75—85 µm; aperture 30—35 µm.

Habitat: Freshwater. river sediments.

Geographical distribution: Shallow lagoons of the Kurakchay river, Azerbaijan.

Remarks: According to Snegovaya and Alekperov, 2005, this species resembles D. globularis (Wallich 1864), D. globulosa Dujardin 1937 and D. gramen Penard 1902, differing from the latter species in having a simple aperture, and from the former two, in shell size and structure and the subapical aperture.

References: Snegovaya, N. and Alekperov, I. (2005) Fauna of testate amoebae of western Azerbaijan Rivers. Protistology 4 (2), 149-183.