(obsolete, zoology) A division of Gregarinia including those that have two or more internal divisions of the body.
(obsolete, zoology) A species of large brown algae, Cystophora polycystidea found in Spencer Gulf, South Australia.
Taxonomic revisions and the adoption of standardized suffixes for naming biological entities appear to have rendered the name of this "division" obsolete. The intended organism appears to be a parasiticamoeba-like protozoan in the subclass Telosporea rather than the flatworm family Polycystidae.
New Latin See poly-, and Cystidea.
English Wiktionary. Available under CC-BY-SA license.