PLATE XLIV. 
PAGE 
Pigs, la, lb. Oliva litterata Lamarck 169 
la. Dorsal view. Church Hill. 
lb. Ventral view of the same specimen. 
Figs. 2, 3. Oliva habrisi n. sp 170 
2. Ventral view of young individual. Plum Point. U. S. National 
Museum. 
3. Ventral view of larger specimen. Same locality. 
Fig. 4. Mabginella minuta Pfeiffer 170 
4. Ventral view. Greensboro. 
Fig. 5. Marginella denticulata Conrad 171 
5. Ventral view. St. Mary's River. 
Fig. 6. Marginella calvertexsis n. sp 172 
6. Ventral view. Plum Point. U. S. National Museum. 
Fig. 7. ScAPHELLA solitaria (Conrad) 173 
7. Ventral view. Plum Point. 
Figs, 8, 9. Scaphella (Aurima) mutabili.s (Conrad) 174 
8. Ventral view. St. Mary's River. 
9. Ventral view of another specimen. Same locality. 
Fig. 10. Scaphella (Aurinia) typus (Conrad) 175 
10. Ventral view. Jones Wharf. 
Fig. 11. Scaphella (Aurinia) obtusa (Emmons) 175 
11. Ventral view. (After Dall.) 
Fig. 12. Mitka MARIANA n. sp 177 
12. Ventral view. St. Mary's River. Wagner Free Institute of 
of Science. 
