72 



McHenry Co; Athens, Menard Co. (Nason): Spoon River 

 (Strode): Fulton Co. (Wolf); Havana, Mason Co. ; Peoria, Pe- 

 oria Co. (State Laboratory) . 



Strophltus edentulus pavonius Lea. 



Cook Co. (Baker) ; Hickory Creek, Will Co. (Ferriss) ; Joliet, 

 WillC^o. (Handwerk); Wabash River (Marsh). 



HOMOGEN^. 



.....,:;,:, Genus Anodonta (Bruguiere) Lamarck. 



Anodontn imhecilis Say. 



.; . (!ook Co. (Baker, Calkins, Jensen); Northern Illinois (Calk- 



:■: ins); Illinois River (Calkins, Kelly, Strode) : Kankakee River 



•. (Ferriss) ; Quincy, Adams Co. (Garnian, Hart); Desplaines 



-;; (River (Handwerk); Kishwaukee and Big and. Little Muddy 



U; 'rivers (Hinklev); La Salle Co. (Huett) ; Pulaski Co. (Lyon); 



■. Mercer Co., Mississippi River (Marsh); Spoon River (Strode); 



Southern Hlinois (Ultt'ers); Fulton Co. (Wolf); Quiver Lake 



and Havana, Mason Co. ; Peoria, Peoria Co.; Hamilton Co. ; 



Pekin Lake, Tazewell Co. (State Laboratory). 



Anodonta sidjorhieulata Say. 



Northern Hlinois (Calkins) ; Springfield, Sangamon Co. 

 (Call) ; Putnam (_'o. (Ferriss) ; Thompson's Lake, Fulton Co. 

 (Kelly, Strode) ; Fulton Co. (Lyon, Wolf) ; Mercer Co., Missis- 

 sippi River (Marsh) ; Spoon and Hlinois rivers (Strode) ; 

 Southern Hlinois (Ulff'ers) ; Thompson's Lake, Fulton Co.; 

 Clear and Quiver lakes, Mason Co. (State Laboratory). 



Anodonta grandis Say {=salmoma Lea, ovata hea,). 



Cook Co. (Baker, Nason); Northern Hlinois (Calkins) ; Fox 

 River, Dundee, Kane Co. (Engleholm) ; Hlinois River (Ferriss, 

 Strode) ; Quincy, Adams Co. (Garman, Hart, Nason) ; Du Page 

 River (Gault) ; Desplaines River (Handwerk) ; Mackinaw Riv- 

 er, Kappa, Woodford Co. (Hart); Winnebago Co. ; Little Wa- 



.• bash, Kaskaskia, Big Muddy, and Little Muddy rivers (Hink- 

 , leyi) ; La SalleCo. (Huett) ; Thompson's Lake and Spoon River, 



. Fulton Co. (Kelly, Strode): Union Co. (Lyon): Lake Co. 



- • (Marcy) ; Rock River, Mercer Co. ; Washington Co. ; Winnebago 



: ' Co. (Marsh): Algonquin, McHenry Co. ; Athens, Menard Co. 

 (Nason); Southern Hlinois (Differs) ; Fulton Co. (Wolf); 



-.' Grass Lake, Lake Co. (Woodruff); Havana, Mason Co.; Crystal 



