List of the Mollusca of Missouri. 71 



14. Helicina orbiculata tropica 'Jan.' 



Jasper Co. (2) ; Barry Co. (9) ; Macdonald Co. 

 (5) ; Seligman, Barry Co. (Pilsbry) ; Cliadwick, 

 Christian Co. (Pilsbry & Ferriss). 



Postpliocene : — Providence, Boone Co. (8). 



15. Helicina occulta Say. 



Postpliocene: — Glasgow, Howard Co. (8); St. 

 Joseph, Buchanan Co. (6) ; Kansas City, Jack- 

 son Co. (Shimek) ; Boonville, Cooper Co. 

 (Shimek) ; St. Louis (Shimek). 



Living specimens have been found in Iowa and some 

 other States, but none have yet been recorded from this 

 State. 



T^NIOGLOSSA. 

 ViVIPARIDiE. 



viviPARA Lam. 



16. ViviPARA coNTECTOiDEs W. G. Biuucy. 



Binney in Part III of Land and Fresh Water Shells 

 of North America says that this has been found in Mis- 

 souri. 



17. ViviPARA INTERTEXTA Say. 



Henry Co. (4). 



CAMPELOMA Rafiiiesque. 



18. Campeloma subsolidum Anth. 



Petite Saline, Cooper Co. (4) ; Flat Creek, 

 Pettis Co. (8), (1); Stomach of wild duck, 

 Pettis Co. (14) ; Marmaton River, Nevada, 

 Vernon Co. (3) ; Cow Skin River, Macdonald 

 Co. (6); Grand Falls, Jasper Co. (1); Pond, 

 Current River, Van Buren, Carter Co. (7) ; 

 Black River, Poplar Bluffs, Butler Co. (5) ; 



