i9 2 STUDIES IN GEOLOGY, No. 3 



PLATE VIII. . ; 



Fig. i. Cardium (Trachycardium) peruvianum Spieker. 



2,3. Cardium (Trigoniocardia) affinis (Nelson). 



3- X2. 



4- Dosinia (Dosinidia) grandis Nelson. 

 5. Clementia dariena (Conrad). 



