86 



Fulton Co. (Nason): Matanzas and Quiver lakes, and Illinois 

 River, Havana, IMason Co. ; Pistakee, Cedar, Fourth, Loon, Fox, 

 and vSand lakes. Lake Co. ; Lake Michigan, Cook Co. ; Thompson's 

 Lake, Fulton Co. ; Quincy, Adams Co. ; Grand Pierre Creek, 

 Herod, Pope Co.; Towanda, McLean Co (State Laboratory). 



Corneocyclas compressa lidylgata Sterki. 



Cedar and Fox lakes and between Loon and Cedar lakes, Lake 

 Co. (State Laboratory). 



Corneocyclas compressa rostraia Sterki. 



Lake Michigan, Cook Co. (State Laboratory). 



Several specimens are provisionally referred to this variety 

 by Dr. Sterki. 

 Corneocyclas cruciata Sterki. 



Lilycash Creek, Will Co. (Handwerk) : Joliet, Will Co. 

 (Handwerk, Sterki). 

 Corneocyclas falla.i- Sterki. 



Lilycash Creek, Joliet, Will Co. (Ferriss, Handwerk). 

 Corneocyclas hamhiierJci Sterki. 



Lilycash Creek, Will Co. (Handwerk). 

 Corneocyclas idahoensis Koper. 



Lake Michigan, Cook Co. (Daniels). 

 Corneocyclas pauperculata cri/stalensts Sterki. 



Sand Lake, Lake Co. (State Laboratory). 



Corneocyclas ynecliana Sterki. 



Pistakee Lake, Lake Co. (State Laboratory). 

 Corneocyclas tenuisshna Sterki. 



Long Lake, Lake Co. ( State Laboratory). 



Corneocyclas kirklandi Sterki. 

 Cook Co. (Baker). 



Corneocyclas novcborace/i sis Prime . 



Northern Illinois (Marsh) ; Cedar and Pistakee lakes, Lake 

 Co. ( State Laboratory ) . 

 Corneocyclas Howhoraccnsis clerafa Sterki. 



Joliet, Will Co. (Ferriss, Handwerk). 

 Corneocyclas peralata Sterki. 



Elizal)ethtown, Hardin (!o. (Hinkiey); Havana, Mason Co. 

 (Sterki) ; Fox Lake, Lake Co. ; Lake Michigan, Cook Co. (State 

 Laboratory). 



