PLATE LXII. 
PAGE 
Figs. 1, 2. Teinostoma nanum (Lea) 263 
la. Profile of specimen from Cove Point. 
lb. Same specimen as seen from above. 
Ic. Same specimen as seen from below. 
2a. Profile of specimen from St. Mary's River. 
2b. Same specimen as seen from above. 
2c. Same specimen as seen from below. 
Figs. 3a-3c. Teinostoma calvertense n. sp 264 
3a. Profile of specimen from Plum Point. 
3b. Upper view of the same specimen. 
3c. Lower view of the same specimen. 
Pigs. 4a-4c. Teinostoma lii'auu.ai (H. C. Lea) 264 
4a. Profile of specimen from St. Mary's River. 
4b. Upper view of the same specimen. 
4c. Lower view of the same specimen. 
Figs. 5a-5c. Teinostoma oREENSBouoiiNSK n. sp 265 
5a. Profile of specimen from Greensboro. 
5b. Upper view of the same specimen. 
5c. Lower view of the same specimen. 
Figs. 6a-6c. Cociiliolepis striata Dall 265 
6a. Profile of specimen from Plum Point. U. S. National Museum. 
6b. Upper view of the same specimen. 
6c. Lower view of the same specimen. 
Fig. 7. MoLLERiA mixuscula Dall 266 
7. View of type specimen. St. Mary's River. U. S. National Museum. 
