66 



Lampsilis orbiculata Hildreth.* 



Northern Illinois (Calkins) ; Mississippi River, Quincy, Adams 

 Co. (Hart, Nason) ; La Salle Co. (Huett) ; Wabash River 

 (Marsh); Illinois River (Strode) ; Fulton Co. (Wolf); Havana, 

 Mason Co. (State Laboratory). 



Lampsilis higginsii Lea. 



Illinois River (Ferriss, Handwerk, Kelly) ; Kankakee River 

 (Handwerk) ; Mississippi River (Marsh). 



Lampsilis anodontoides Lea (= teres Say). 



Savanna, Carroll Co. ; Cook Co. (Baker) : Mt. Carmel, Wabash 

 Co.; Northern Illinois (Calkins) ; Illinois River (Ferriss, Hand- 

 werk, Strode); Shawneetown, Gallatin Co. (Fischer); Du Page 

 Co. (Gault) ; all rivers visited (Hinkley) ; La Salle Co. (Huett) ; 

 Illinois River (Kelly) ; Cache Creek, Pulaski Co. (Lyon) ; Mer- 

 cer Co., Mississippi River (Marsh) ; Mississippi River, Quincy, 

 Adams Co.; Athens, Menard Co. (Nason); Thompson's Lake 

 (Strode); Southern Illinois (Ulffers) ; Fulton Co. (Wolf); Ha- 

 vana, Mason Co.; Fulton Co. (State Laboratory). 



Lampsilis fallaciosa (Smith) Simpson. 



Savanna, Carroll Co. ; Cook Co. (Baker) ; Meredosia, Morgan 

 Co. (Gault); Hickory Creek, Will Co. (Handwerk); Quincy, 

 Adams Co. (Hart) ; Cache Creek, Pulaski Co. ; Crooked and 

 Clear creeks, Union Co. (Lyon) ; Mississippi River (Marsh) ; 

 Havana, Mason Co. ; Meredosia, Morgan Co. ; Peoria, Peoria Co. 

 (State Laboratory). 



Lampsilis recta Lamarck. 



Fox River (Atwater) ; Savanna, Carroll Co. ; Cook Co; Ore- 

 gon, Ogle Co. (Baker) ; Northern Illinois (Calkins) ; Fox River, 

 Dundee, Kane Co. (Engleholm, Nason) ; Kankakee River (Fer- 

 riss) ; Illinois, Kankakee, and Du Page rivers (Handwerk); 

 Mississippi River, Quincy, Adams Co. (Hart); Winnebago Co. ; 

 Kaskaskia River (Hinkley) ; La Salle (Jo. (Huett) ; Alton, Madi- 

 son Co. (Kennicott) ; Mississippi River, Mercer Co. (Marsh) ; Fox 

 River, Algonquin, McHenry Co. ; Athens. Menard Co. (Nason) ; 

 Illinois and Spoon rivers and Quiver Creek, Mason Co. (Strode) ; 

 Southern Illinois (Ulffers) ; Fulton Co. (Wolf) ; Havana, Mason 

 Co. (State L aboratory ) . 



*Lampsilis pinguis Lea is listed by Marsh from the Illinois River. According to Simp- 

 son this species ie doubtfully distinct from orbiculata, the type being diseased. 

 It is recorded only from St. Peter's River, Minnesota. (Simpson's Synopsis, p. 540. ) 



