Annulcae

Annulcae includes all Simplemulticytae that grow in ring-shaped colonies.

Domain: Eukaryota
 * Kingdom: Crocusiophyta
 * Phylum: Aaurumphyta
 * Class: Gilduorba
 * Order: Simplemulticytae
 * Family: Annulcae
 * Orbis orbis
 * Orbis capitisurum
 * Orbis meridianus