PLATE 62. 



Leptostrophia magnified (Hall) 

 Page 233. 



Fig. 1. Exfoliated portion of large pedicle valve. 



Fig. 2. Interior view of an incomplete brachial valve showing muscular impressions 

 and pustulose aspect of the vascular area, and crenulations of the hinge line. 

 Fig. 3. Exterior view of the pedicle valve. 



Leptostrophia magniventra Hall 

 Page 234. 



Fig. 4. Exterior view of an exfoliated pedicle valve. 



Fig. 5. Exfoliated pedicle valve showing form of muscle scars. 



Brachy prion cf. majus Clarke 

 Page 235. 



Fig. 6. Exterior view of a pedicle valve. 

 Fig. 7. Interior view of a pedicle valve. 



Brachyprion sp. 

 Page 236. 



Fig. 8, 9. Interior views of two brachial valves. 

 Fig. 10. Exterior view of a brachial valve. 



Schuchertella sp. 

 Page 236. 



Fig. 11. View of an incomplete pedicle valve. 



Eatonia peculiaris Conrad 

 Page 237. ' 



Fig. 12. Pedicle view of a large individual. 



Figs. 13-16. Brachial, pedicle, lateral and anterior views of a nearly perfect specimen 

 of average size. 



