72 Trans. Acad. Sci. of St. Louis. 



Big River, St. Frangois Co. (1) ; Little River, 

 Mo. (Call.); Dent Co. (15); Mississippi River, 

 Pike Co. (5). 



The collection has two reversed specimens from Pettis 

 county. 



19. Campeloma INTEGRA Say. 



In his description of this species Say states that it in- 

 habits the waters of the Missouri, but does not give any 

 locality. However, according to Call it is not found in 

 Missouri. 



Amnicolid^. 

 BYTHiNELLA Moq-Taud. 



20. Bythinella aldeichi Call. 



Branch of Black River, Reynolds Co. (8). 



These specimens were received from R. Ellsworth 

 Call, and were a part of the original type lot. The spe- 

 cies was described in the Bulletin of the Washburn Col- 

 lege Laboratory of Natural History, December, 1886. 



AMNicoLA Gld. & Hald. 



21. Amnicola paeva Lea. 



Flat Creek, Pettis Co. (175) ; Lamar, Barton 

 Co. (1) ; Hinkston Creek, Columbia, Boone 

 Co. (3). 



22. Amnicola cincinnatiensis Lea. 



Osage River, Cape Galena, Morgan Co. (1) ; 

 Flat Creek, Pettis Co. (75); Jasper Co. (17), 

 (13) ; Grand Falls, Jasper Co. (1) ; Marmaton 

 River, Nevada, Vernon Co. (25) ; Gravois Mills, 

 Morgan Co. (8) ; Lamar, Barton Co. (25) ; 

 Peirce City, Lawrence Co. (angulate var.) (8) ; 

 Lost Creek, Seneca, Newton Co. (angulate 

 var.) (1). 



