Trichamoeba cloaca
Trichamoeba cloaca, 96 µm

 

 

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 bipiramidal 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.

 

Trichamoeba cloaca
Trichamoeba cloaca, 106 µm long, nucleus 14 µm - sediment, Crailoo, the Netherlands
Trichamoeba cloaca
Trichamoeba cloaca
Nucleus, 14 µm, and uroid