FritillariidaeFritillariidae is a family of tunicates belonging to the order Copelata.GeneraFritillariidae comprises three genera, divided into two subfamilies. While the trunk anatomy differs between the genera, they share a similar arrangement of house-producing cells over the midline of the pharyngeal trunk, distinguishing them from the Oikopleuridae. Appendiculariinae Seeliger, 1895* Appendicularia Fol, 1874 Fritillariinae Seeliger, 1895* Fritillaria Fol, 1872* Tectillaria Lohmann, 1926