PLATE III. 



Aviculopecten pecteniformis. 



Fig. 1. View of a left valve. Page 225 



Actinopteria boydi. 



Fig. 2. View of a left valve, showing surface ornamentation. Page 229 



Discina grandis. 



Fig. 3. Dorsal view of a specimen. Page 33 



Aviculopecten fasciculatus. 



Fig. 4. View of a left valve. Page 224 



Glyptodesma occidentale. 



Fig. 5. View of a left valve. Page 228 



Limoptera cancellata. 

 Fig. 6-8. Left, right and cardinal view of specimen. Page 198 



