PLATE VII. 



PAGE 



Fig. 42. Tapes Staleyi. Natural size. 24 



From a worn specimen. 

 Fig. 44. ?T. truncata. Natural size. 25 



44 a. Outline of cardinal angle. 

 Fig. 45. Cyrena Californica. Natural size. 26 



Fig. 46. Cardium Meekianum. Natural size. 27 



Fig. 48. Conchocei.e disjunota. Natural size. 28 



48 a. View from above. 



48 b. Hinge. 



