Opinions from N.J. Morris and R. J. Cleevely 1981

  • 'Amphiscapha belongs to Euomphalidae'
  • 'Amphiscapha (Cylicioscapha) was reranked as Cylicioscapha and belongs to Euomphalidae'
  • 'Amphitomaria belongs to Euomphalidae'
  • 'Babylonites belongs to Omphalotrochidae'
  • 'Barnesella belongs to Ophiletidae'
  • 'Calaurops belongs to Ophiletidae'
  • 'Centrifugus belongs to Euomphalidae'
  • 'Ceratopea belongs to Ophiletidae'
  • 'Diploconula belongs to Omphalotrochidae'
  • 'Dirhachopea belongs to Ophiletidae'
  • 'Discotropis belongs to Omphalotrochidae'
  • 'Ecculiomphalus belongs to Ophiletidae'
  • 'Eccyliomphalus alatus is recombined as Eccyliopterus alatus'
  • 'Eccyliopterus belongs to Helicotominae'
  • 'Elkoceras belongs to Euomphalidae'
  • 'Elkoceras volborthi belongs to Elkoceras'
  • 'Euomphalacea is corrected as Euomphaloidea and belongs to Pleurotomariina'
  • 'Euomphalidae belongs to Euomphaloidea'
  • 'Euomphalopsis belongs to Euomphalidae'
  • 'Euomphalus belongs to Euomphalidae'
  • 'Euomphalus (Woehrmannia) was reranked as Woehrmannia and belongs to Euomphalidae'
  • 'Euomphalus cristatus is recombined as Phanerotinus cristatus'
  • 'Helicotoma belongs to Helicotominae'
  • 'Helicotominae was reranked as the family Helicotomidae and belongs to Euomphaloidea'
  • 'Lecanospira belongs to Ophiletidae'
  • 'Leptomphalus belongs to Euomphalidae'
  • 'Lesueurilla belongs to Ophiletidae'
  • 'Lophonema belongs to Helicotominae'
  • 'Lytospira belongs to Ophiletidae'
  • 'Macluritella belongs to Euomphalidae'
  • 'Mastigospira belongs to Ophiletidae'
  • 'Micromphalus belongs to Omphalotrochidae'
  • 'Nevadaspira belongs to Euomphalidae'
  • 'Odontomaria belongs to Ophiletidae'
  • 'Omphalocirrus belongs to Euomphalidae'
  • 'Omphalotrochidae belongs to Euomphaloidea'
  • 'Omphalotrochus belongs to Omphalotrochidae'
  • 'Ophileta belongs to Ophiletidae'
  • 'Ophiletidae belongs to Euomphaloidea'
  • 'Ophiletina belongs to Ophiletidae'
  • 'Orecopia belongs to Omphalotrochidae'
  • 'Orospira bigranosa is recombined as Lophonema bigranosa'
  • 'Pararaphistoma belongs to Ophiletidae'
  • 'Phanerotinus belongs to Euomphalidae'
  • 'Philoxene belongs to Euomphalidae'
  • 'Planotectus belongs to Euomphalidae'
  • 'Pleuronotus belongs to Euomphalidae'
  • 'Poleumita belongs to Euomphalidae'
  • 'Polhemia taneyensis is recombined as Lophonema taneyensis'
  • 'Schizopea belongs to Ophiletidae'
  • 'Serpulospira belongs to Euomphalidae'
  • 'Sinistrispira belongs to Euomphalidae'
  • 'Sinutropis belongs to Euomphalidae'
  • 'Straparollus belongs to Euomphalidae'