Phylum Mollusca Linnaeus, 1758 - molluscs Class Caudofoveata Boettger, 1956 [monotypic] - caudofoveatans Order Chaetodermatida Simroth, 1893 Family Chaetodermatidae von Ihering, 1786 1 Genus Chaetoderma Lovén, 1844 2 Genus Falcidens Salvini-Plawen, 1968