Trichamoeba cloaca Bovee, 1972
Diagnosis: L : B ratio up to 3. Locomotion slow compared with T. sinuosa; uroid often bulbous, ragged, with short (pseudo)villi; usually with up to 30 relatively large flattened or truncated bipyramidal crystals; nucleus with small nucleoli, most located peripherally.
Dimensions: length 80-150 µm, L:B < 3; nucleus 8-15 µm.
Ecology: freshwater; sediments.
Remarks: The locomotive form doesn’t show the typical zigzag movement, so characteristic for T. sinuosa.