Reference

N.B. Willumsen, F. Siemensma, P. Suhr-Jessen (1987): A Multinucleate Amoeba, Parachaos zoochlorellae (Willumsen 1982) comb, nov., and a Proposed Division of the Genus Chaos into the Genera Chaos and Parachaos (Gymnamoebia, Amoebidae) – Archiv für Protistenkunde – 134_1987: 303 - 313.