104 



Lymncea sterhii Baker. 



Canton, Fulton Co. (Nason). 



Lymncea humilis Say. 



Cook Co. (Baker); Desplaines River (Ferriss) : Joliet, Will 

 Co. (Ferriss, Handwerk ) : La Salle Co. (Huett); Mercer Co. 

 (Marsh); Elgin, Kane Co. : Algonquin, McHenry Co. ; Canton, 

 Fulton Co. (Nason) ; Jackson Co. (Walker) ; Fulton Co. (Wolf) : 

 Grand Tower, Jackson Co. (Woodruff): Quiver and Matanzas 

 lakes, Havana, Mason Co. (State Laboratory). 



Lymncea parva Lea (= curta Lea). 



Joliet, Will Co. (Ferriss, Handwerk) ; Mercer Co. (Marsh) ; 



Athens, Menard Co. ; Cook Co. : Algonquin and Crystal Lake, Mc- 

 Henry Co.; Elgin, Kane Co. (Nason) : Canton, Fulton Co. (Na- 

 son, Walker); Fulton Co. (Wolf); Copperas Creek ( Phil. Acad. 

 Sciences); Illinois River, Havana, Mason Co.: Clifton, Iroquois 

 Co. (State Laboratory). 



Lymncea dalli Baker 



Rockford, Winnebago Co. (Hinkley); Northern Illinois, in 

 drift (Sterki). 



Subgenus Stagnicola Leach. 



Section Stagnicola 8.8. 

 Lymncea catascopium Say ( = fuslformis Lea). 



Cook Co. ( Baker, Jensen, Nason ) ; Northern Illinois (Calkins) ; 

 Will Co. (Marsh) ; Lake Michigan, Chicago, Cook Co. (State Lab- 

 oratory). 



Lymncea <-<itnseopium pinguis Say. 

 Cook Co. (Baker, Calkins). 



Lymncea woodruM Baker. 



Lake Michigan, Cook Co. (Baker, Lyon, Nason, Woodruff, 

 State Laboratory). 



Lymnaea caperata Say ( = fevrissi Baker). 



Cook Co. (Baker, Calkins, Jensen, Nason) ; Northern Illinois 

 (Calkins): Joliet, Will Co. (Ferriss); Winnebago Co. (Hink- 

 ley); Lake Co. (Huett); Mercer and Whiteside counties 

 (Marsh); Elgin. Kane Co. ; Algonquin and Crystal Lake, Mc- 

 Henry Co (Nason); Fulton Co. (Wolf); Urbana, Champaign 

 Co. ; Cedar Lake, Lake Co. ; Clifton, Iroquois Co. ; Quincy, Ad- 

 ams Co.; Freeport, Stephenson Co. (State Laboratory). 



