90 



Campeloma decisum Say. 



Chicago, Cook Co. (Baker, Higley, Jensen, Woodruff) ; North- 

 ern Illinois (Binney, Calkins); Jerseyville, Jersey Co. ; Bata- 

 via, Kane Co. (Binney); Du Page River, (Ferriss); Quincy, 

 Adams Co. (Garman) ; Joliet, Will Co. (Handwerk); all rivers 

 visited (Hinkley); La Salle Co. (Huett); Sangamon Co. 

 (Marsh); Elgin, Kane Co. ; Algonquin, McHenry Co. (Nason); 

 Quiver Lake, Havana, Mason Co.; Sand Lake, Lake Co. (State 

 Laboratory). 



Campeloma integrum De Kay. 



Savanna, Carroll Co.; Oregon, Ogle Co. (Baker); Cook Co. 

 (Baker, Higley, Jensen, Lyon) ; Kane Co., Fox and Illinois riv- 

 ers (Calkins) ; Du Page River (Ferriss) ; Joliet, Will Co. ( Hand- 

 werk); Kappa, Woodford Co. (Hart); Hamilton Co. (Lyon); 

 Elgin, Kane Co. ; Algonquin, McHenry Co. (Nason) ; Quincy, 

 Adams Co. ; Peoria, Peoria Co. ; Fox and Sand lakes, Lake Co. ; 

 Havana, Mason Co.; Milan, Rock Island Co.; Fulton Co. (State 

 Laboratory). 



Campeloma integrum obesum Lewis. 



Fox and Illinois rivers (Calkins) ; Mercer Co. (John Henry) ; 

 Cook and Pulaski counties (Lyon); Winnebago Co. (Marsh); 

 Peoria, Peoria Co. ; Crooked Creek, Clinton Co. ; Quincy, Ad- 

 ams Co. (State Laboratory). 



Campeloma rufum Haldeman. 



Cook Co. (Baker, Jensen, Lyon, Woodruff); Northern Illinois 

 (Calkins); Du Page River (Ferriss); Joliet, Will Co. (Hand- 

 werk); Kappa, Woodford Co. (Hart); Rockford, Winnebago 

 Co. (Hinkley); Mercer and Vermilion counties (Marsh); El- 

 gin, Kane Co. ; Algonquin, McHenry Co. (Nason); Fulton Co. 

 (Wolf) ; Cedar Lake, Lake Co. ; Peoria, Peoria Co. ; Pekin Lake, 

 Tazewell Co. ; Ohio River and Cache Creek, Pulaski Co. ; Clear 

 Lake, Cairo, Alexander Co. (State Laboratory). 



Campeloma siiusoUdum Anthony. 



Savanna, Carroll Co. (Baker) ; Cook Co. (Baker, Calkins, Jen- 

 sen, Lyon ) ; Northern Illinois ; Illinois and Fox rivers (Calkins) ; 

 Grundy Co. (Daniels); Joliet, Will Co. (Handwerk); Quincy, 

 Adams Co. (Hart); La Salle Co. (Huett) ; Union and Pulaski 

 counties (Lyon); Mercer Co. (Marsh); Elgin, Kane Co.; Al- 

 gonquin, McHenry Co. ; Athens, Menard Co. ; Quincy, Adams 



