Calwelliidae
Calwelliidae is a family of bryozoans belonging to the order Cheilostomatida.
Genera:Calwellia Wyville Thomson, 1858Ichthyaria Busk, 1884Ijimaiellia Gordon, 2009Malakosaria Goldstein, 1882Onchoporella Busk, 1884Onchoporoides Ortmann, 1890Wrigiana Gordon & d'Hondt, 1997