95 



Subfamily POMATIOPSIN-^E. 



Genus Pomatiopsis Tryon. 

 Pomatiopsis cin cinnatiensis An thon y . 



Northern Illinois (Calkins); Joliet, Will Co.; Kankakee 

 River (Ferriss) ; Peoria Co. (Marsh) ; Fulton Co. (Wolf). 

 Pomatiopsis lapidaria Say (—lustrica Say). 



Cook Co. (Baker, Higley) ; Northern Illinois; Ottawa, La 

 Salle Co. (Calkins) ; Kankakee River ; Joliet, Will Co. (Ferriss) ; 

 Quincy, Adams Co. (Hart); Winnebago Co.; Du Bois, Wash- 

 ington Co. (Hinkley) ; La Salle Co. (Huett) ; Winnebago and 

 Mercer counties (Marsh); Elgin, Kane Co.; Algonquin, Mc- 

 HenryCo ; Athens, Menard Co. (Nason) ; Fulton Co. (Wolf); 

 Quiver Lake, Havana, Mason Co.; Bartelso, Clinton Co. (State 

 Laboratory). 



Pomatiopsis sheldonii Pilsbry. 

 Illinois River (Marsh). 



Genus Pyrgulopsis Call and Pilsbry. 



Pyrgulopsis mississipjnensis Pilsbry. 



Mississippi River, near mouth of Rock River (Call, Marsh, 

 Pilsbry). 



Pyrgulopsis scalariformis Wolf. 



Tazewell Co. shore of Illinois River (Wolf). 



Family PLEUROCERLD^]. 



Genus Angitrema Haldeman. 



Angitrema armigera Say. 



Wabash and Ohio rivers (Hinkley); Ohio River (Marsh) ; 

 Southern Illinois (Ulffers) ; Ohio River, Golconda, Pope Co. 

 (State Laboratory). 



Angitrema verrucosa' Rafinesque. 



Wabash and Ohio rivers (Hinkley) ; Ohio River (Marsh) ; Mt. 

 Carmel, Wabash Co. (Nelson) ; Ohio River, Golconda, Pope Co. 

 (State Laboratory). 



Genus Lithasia Haldeman. 



Lithasia ttndosa Anthony. 



Little Wabash and Saline rivers (Hinkley): <>hi<» River 

 (Marsh). 



