PLATE XXII. 

 Cypbina (continued) . 



Figs. 



1-4. G. (Venilicardia) angulata (Sow.). Upper Greenland, Blackdown. See 

 also Text-figures 2:3, 24. (P. 141.) 



1. Sedgwick Museum. Left valve, x £ . 



2. Sedgwick Museum. Hinge of right valve, X f. 



3. York Museum. Hinge of left valve. 



4. Museum of the Geological Society. Hinge of right valve of a specimen with the 



umbones more anterior than usual, x |. 



5-8. 0. (Venilicardia) lineolata (Sow.). Upper Greensand, Blackdown. 

 Sedgwick Museum. (P. 143.) 



5 a, left valve ; 5 b, anterior view. 



(3 a, right valve ; 6 b, hinge of the same. 



7. Hinge of left valve. 



8. Kiijlit valve. 





