Omphalotrochidae Knight, 1945
Pseudomphalotrochus bonapartensis
Pseudomphalotrochus clarkei
Pseudomphalotrochus gibsoni
Pseudomphalotrochus hoffmani
Pseudomphalotrochus incrustatus
Pseudomphalotrochus leonhardi
Pseudomphalotrochus linsleyi
Pseudomphalotrochus philosophus
Pseudomphalotrochus winnipegosis