[ref. ID; 1618]
Body small, somewhat oval; without chromatophores; much compressed; anterior end obliquely truncate; with 2 equal or subequal anterior flagella; colorless; nucleus central; anabolic products, stained red or reddish violet by iodine; contractile vacuole usually anterior; a row of retractile granules, protrichocysts, close and parallel to anterior margin of body; asexual reproduction by longitudinal fission; holozoic; in stagnant water and infusion. One species. (ref. ID; 1618)
[ref. ID; 5694]
Free-living heterotrophic flagellates. (ref. ID; 5694)