

TAB. XIII. 



Fig. 





1, la, b. 



Thracia curtansata, p. 110. 



2, 2a, c. 



Cyprina Loweana, p. 88. 



2d. 



„ „ var. elongata. 



3. 



Cyprina Jurensis, p. 89. 



4. 



Cyprina depressiuscula, p. 90. 



5, 5a, b, 



c. Cyprina trapeziformis, p. 89. 



6a. 



Tancredia axiniformis, p. 93. 



(Sb. 



Hinge of ditto. 



la. 



Tancredia curtansata, p. 93. 



lb. 



Hinge of ditto. 



8. 



Tancredia brevis, p. 92. 



9a, b. 



Tancredia angulata, p. 94. 



10a, 



Tancredia planata, p. 94. 



10b, 



Hinge of ditto. 



li. 



Tancredia truncata, p. 92. 



12. 



Pholadomya ovulum, p. 122. 



13. 



Pholadomya acuticosta, p. 121. 



14. 



Corbis (Corbicelia) Bathonica, p. 95 



15. 



Myacites securiforrnis, p. 136. 



16. 



Goniomya V-scripta, p. 139. 



17. 



Pholas pulchralis, p. 140. 



18. 



Pholas Oolitica, p. 140. 



19. 



Cyprina dolabra, p. 135. 



20a, b. 



Pinna cancellata, p. 130. 



