216 



Kansas Academy of Science. 



Fig. 44. 

 Fig. 45o. 

 Fig. 45&. 

 Fig. 45c. 

 Fig. 46. 

 Fig. 47. 

 Fig. 48. 

 Fig. 49(1. 

 Fig. 50. 

 Fig. 51«. 

 Fig. 51h. 

 Fig. 52. 

 Fig. 53a. 

 Fig. 536. 



PLATE V. 



Mactra (Spisula) falcata Goukl. 



Mactra (Spisula) falcata?: right valve, s^howinir umbones. 



Left valve of same specimen. 



Dorsal view of same specimen. 



Mya truncata Linne ; a cast of a broken left valve : times, one-half. 



Cylichna alba Brown ; a much broken specimen. 



Pleurotoma perversa Gabb. 



496. Bela sanctie monicae Arnold ? ; specimen much broken. 



Bela fidicula Gould. 



Buccinum bogachielii n. s. : a bi-oken specimen. 



An opposite view of Sin. 



Chrysodomus giganteus n. s. 



Chrysodomus stantoni Arnold ; a cast ; times, one-half. 



A fragment of the above specimen, showing the sloping tabular area. 



