Difflugia serbica Ogden and Zivkovic, 1983
Diagnosis: Test resembles a spearhead, tapers towards the aboral region, forming a pointed tip. Laterally compressed. Covered with large, often flattened mineral grains, the size of which decreases from the middle towards the pseudostome and tip. The surface is smooth. The pseudostome is round.
Dimensions: Length 169-189 µm, width 110-113 µm, thickness 68-79 µm, pseudostome 31-41 µm.