[ref. ID; 1618]
Test rounded pyriform, flexible, chitinous, violet-colored; endoplasm vacuolated, with chlorophyllous particles; several nuclei; pseudopodia simple, not digitate; fresh water. (ref. ID; 1618)
[ref. ID; 1923]
Shell membrane simple, and violet. One species resembling Amphizonella, but with many nuclei. (ref. ID; 1923)