PLATE XXII. 



Cyprina {continued). 



Figs. 



1-4. G. (VenilicanUd) (unjalahi (Sow.). L^pper Grueusuud, Blackilown. See 

 also Text-figures 23, 24. (P. 141.) 



1. Sedgwick Museum. Left valve, x J. 



2. Sedgwick Museum. Hinge of right valve, x if. 



3. York Museum. Hinge of left valve. 



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



umboues more anterior than usual, x j. 



5-8. G. {VciiUlc(i.i-diii) lini'ulatii (Sow.). Upper Greeiisaiul, Blackdown. 

 Setlgwick Museum. (P. 143.) 



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



G a, right valve ; (J h, hiuge of the same. 



7. Hinge of left valve. 



8. Kight valve. 



