PLATE V. 



Fig. 1. 



Enlax-f^ed three and a 



half diameters. 

 Natural size. 



FiK. 2. 



Cardita lacunar 



1 a. Lelt side view. Natural size. 



1 h. Same, showing lacunaria between posterior ribs. 



1 c. Right side view of a larger shell. 



1 d. Dorsal view of shell represented by Figs. 1 a, b. 



1 e. Same. Enlarged four diameters. 



Isocardia Merrilli 



2 ((. Left side view of cast. 



of artist. 

 2 h. Anterior view of same. 

 2 c. Anterior view of another cast, better showing pallial line, pits, 



and muscular scars. 



Page 

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43 



Badly placed through misunderstanding " 



Natural size. 



Fig. 3. 



Fig. 4. 



Cyprina orientalis .... 



3 a. Left side view of the only cast. 

 3?). Anterior view of the same. 



Natural size. 



Vola Syriaca Conhad sp 



4 a. Outer view of lower (right) valve. Natural size. 

 4 6. Same. Enlarged about one diameter and a half. 

 4 c. Outer view of upper (l^ft) valve. Enlarged about one diameter and a half. 



44 



61 



