- 1933
Nordotis Habe & Kosuge, 1964
Notohaliotis Cotton & Godfrey, 1933
Ovinotis Cotton, 1943
Padollus Montfort, 1810 Paua C. Fleming, 1953 Sanhaliotis...
- †Otopleura †Otostoma †Ottoino
Otukaia †Ovactaeonina †Ovatipsa †Ovilia †
Ovinotis †Ovirissoa †Ovulactaeon †Ovulopsis †Owenella †Oxyacrum †Oxycypraea †Oxygyrus...
