88 



Class GASTROPODA. 

 Subclass Anisopleura. 



. Order PKOSOBRANCHIATA. 



Su perfaniily Rhipidog lossa. 



Family HELICINID^. 



Genus Helicina Lamarck. 



Helicina (trcnlt<( Lamarck. 



Athens, Menard Co. ( Pilsbry ) ; Moline, Rock Island Co. 

 (Shimek). 



Superfainily T^enioglossa. 



Family VIVIPARID/E. 



Genus Vivipara Lamarck. 



Vivipara contectoides W. G. Binnej'. 



Oook Co. (Baker, Calkins, Jensen, Nason, Woodruff) ; Northern 

 Illinois (Calkins) ; Desplaines River (Ferriss) ; Romeo, Will 

 Co.; Kankakee and Illinois rivers (Handwerk) ; Quincy, 

 Adams Co. (Hart) ; AVhite Co. (Hinkley) ; La Salle Co. (Huett) : 

 Mercer Co. ; Henderson Co. (Marsh) ; Mississippi River, (juincy, 

 Adams Co. ; Illinois River (Nason) ; Thomi)Son's Lake, Fulton 

 Co. (Strode) ; Fulton Co. (Wolf); Quiver Lake, and Illinois 

 River, Havana, Mason Co. ; Peoria, Peoria Co. ; Warsaw, Han- 

 cock Co.; Pekin Lake, Tazewell Co.; Fulton Co. (State Labo- 

 ratory). 



Vivipdra siihpurpui'ea Say. 



Northern Illinois (Calkins) ; Rock Island (Call) ; Mt. Carniel, 

 Wabash Co. (Daniels); Utica, in canal. La Salle Co. (Ferriss); 

 (^uincy, Adams Co. (Garman, Hart) : Little Wabash, Saline, 

 and Big Muddy rivers (Hinkley) ; La Salle Co. (Huett) ; Pulaski 

 Co. (Lyon) ; Mercer Co. (Marsh); Mississippi River, Quincy, 

 Adams Co. (Nason); Southern Illinois (Ulft'ers, a.s riiupdra); 

 Fulton Co. (Wolf) ; Matanzas Lake and Illinois River, Havana, 

 Mason Co. ; Peoria, Peoria Co. ; Pekin Lake, TazewuU Co. ; 

 Thompson's Lake, Fulton Co. (State Laboratory), 



