Schizodus wheeleri (Swallow) Meek.

Yoldia subscitula Meek and Hayden.

Bellerophon carbonaria Cox.

Bellerophon crassus Meek and Worthen.

Bellerophon montfortianus Norwood and Pratten.

* Bellerophon percarinatus Conrad.

Bulimorpha nitidula (Meek and Worthen) Keyes.

Capulus parvus Swallow.

Pleurotomaria illinoiensis Worthen? Differs from this species in being much smaller and in having a larger number of nodes to the whorl. The notch in the lip extends back some distance as a thin, almost linear slit.

Pleurotomaria tabulata Conrad.