92 Trans. Acad. Sci. of St. Louis. 



man and Monett, Barry Co. (P. & F.) ; DeSoto, 

 Jefferson Co. (Pils.) ; Bethany, Harrison Co. 

 (Walker Coll.) ; St. Charles Co. (4). 



Postpliocene :— Lnpus, Moniteau Co. (7); 

 Providence, Boone Co. (10). 



The specimens very generally show the character- 

 istics of the variety alleni. Those from one locality in 

 Kansas City are noticeable for their small size. The 

 following will show the sizes of some found in an old 

 cemetery, and of some dead shells found on the bluff 

 above the Union station : 



From Galena the specimens were from 26 to 30 mm. 

 diameter ; from Scott county 32 mm., and the postplio- 

 cene from Providence 23 to 33 mm. 



93. POLYGYEA DIVESTA Gould. 



Dade Co. (5) ; Seligman, Barry Co. (1) ; Car- 

 thage, Jasper Co. (3) ; Camden Co. (1) ; Chad- 

 wick, Christian Co. (Pilsbry) ; Springfield, 

 Greene Co. (Pils.); Cedar Gap, Wright Co. 

 (Pils.); Mt. Vernon, Lawrence Co. (Walker 

 Coll.). 



Postpliocene: — St. Joseph, Buchanan Co. (5). 



