University of Michigan 



PLATE I 



Figure i. Dorsal view of the shell. 



Figure 2. Anterior view of the shell. 



Figure 3. Animal from beneath. 



Figure 4. Head of adult animal. 



Figure 5. Head of immature animal. 



Figure 6. Radula. 



Figure 7. Jaw. 



Figure 8. Buccal mass. 



