(Müller) Foissner, Berger, Blatterer & Kohmann (1995: 329, figs 1–8)
Foissner & O’Donoghue (1990: 672)
Kolpoda lamella Müller (1773: 56)
See Foissner et al. (1995) for synonymy.
In vivo 50–100 (–200) × 10–25 µm. Body narrowly lanceolate, posteriorly broadly rounded; oral area c. 33–50% of body length, with a distinct ridge on left side extending anteriorly onto neck; body laterally flattened, distinctly flexible, contractile. Right somatic kineties 4–7, anteriorly shortened, 4 left kineties. Brosse c. one-third of body length. Perioral kineties 3. Extrusomes rod-shaped, slightly curved, 5–7 µm long, in oral area and in posterior end. Macronuclear nodules 2; micronucleus 1. Contractile vacuole subterminal. Movement: slowly gliding.
Indian sector of the Southern Ocean (Hada, 1970), but too superficially described and possibly misidentified. Probably cosmopolitan in fresh water; marine records are possibly misidentifications (Foissner et al., 1995).