Fritillariidae is a family of tunicates belonging to the order Copelata.
Genera Fritillariidae comprises three genera, divided into two subfamilies. While the trunk anatomy differs between the genera, they share a similar arrangement of house-producing cells (oikoplasts) 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
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