Mixtoscutella cancellata (Smitt, 1868)
Mixtoscutella ovata (Smitt, 1868)
Posterula sarsi (Smitt, 1868) accepted as Posterula sarsii (Smitt, 1868)
Posterula sarsii (Smitt, 1868)
Rhamphostomella bilaminata (Hincks, 1877)
Rhamphostomella costata Lorenz, 1886
Rhamphostomella hincksi Nordgaard, 1906
Rhamphostomella ovata (Smitt, 1868) accepted as Mixtoscutella ovata (Smitt, 1868)
Rhamphostomella plicata (Smitt, 1868)
Rhamphostomella radiatula (Hincks, 1877)
Rhamphostomella scabra (O. Fabricius, 1824)
Umbonula arctica (M. Sars, 1851) accepted as Arctonula arctica (M. Sars, 1851)
Umbonula ovicellata Hastings, 1944
Umbonula patens (Smitt, 1868)
Umbonula verrucosa (Esper, 1790) accepted as Umbonula ovicellata Hastings, 1944