PLATE VII. 



PAGE 



Pig. 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 CALIFORXICA. Natural size. 26 



Fig. 46. CARDIUM MEEKIANUM. Natural size. 27 



Fig. 48. CONOHOCELK DISJTJNCTA. Natural size. 28 



48 a. View from above. 



48 b. Hinge. 



