Reference

J.P. Cann, Frederick Page (1979): Nucleosphaerium tuckeri nov. gen. nov. sp. — A New Freshwater Filose Amoeba Without Motile Form in a New Family Nucleariidae (Filosea: Aconchulinida) Feeding by Ingestion Only – Archiv für Protistenkunde – 122_1979: 226 - 240.