Difflugia pecac Ogden, 1984

Diagnosis: Shell elongated. The greatest width in the last third of the fundus. The aboral region may be rounded or pointed. Shell compressed in the first third of the fundus, but some individuals may be laterally but compressed along the entire length. Covered with flattened mineral grains that form a smooth surface. The pseudostome is oval.

Dimensions: Ogden (1984): Shell length 62-84 µm; width 25-36 µm; thickness 19-30 µm; pseudostome 12-22 µm.

Ecology: Freshwater.