89 



Vivipara subpurpurea texana Try on. 



A specimen of this variety is in the collection of the Chicago 

 Academy of Sciences labeled "Illinois" and presented by Mr. 

 W. W. Calkins. The reference seems doubtful. 



Vivipara intertexta Say. 



Savanna, Carroll Co. (Baker) ; Northern and Southern Illinois 

 (Calkins) ; Mt. Carmel, Wabash Co. (Call, Daniels) ; Putnam 

 Co. (Ferriss) ; Quincy, Adams Co. (Carman, Hart) ; Winnebago 

 Co. (Hinkley) ; Mercer Co. (Marsh) ; Canton, Fulton Co. (Nason, 

 Wolf) ; Thompson's Lake, Fulton Co. (Strode) ; Cypress Swamp, 

 Johnson Co. ; Havana, Mason Co. ; Flag Lake, Fulton Co. (State 

 Laboratory). 



Genus Lioplax Troschel. 



Lioplax subcarinata Say. 



Northern Illinois; Illinois River (Calkins, Nason) ; Kankakee 

 River (Ferriss) ; Mississippi River, Quincy, Adams Co. (Garman, 

 Hart, Nason) ; all rivers visited (Hinkley) ; La Salle Co. 

 (Huett) ; Pulaski Co. (Lyon) ; Mercer Co. (Marsh) ; Canton, 

 Fulton Co. (Nason); Quincy, Adams Co.; Pekin Lake, Taze- 

 well Co. ; Peoria, Peoria Co. ; Matanzas Lake and Illinois River, 

 Mason Co. ; Little Fox River, Phillipstown, White Co. ; Fulton 

 Co.; Franklin Co. (State Laboratory). 



Genus Campeloma Rafinesque. 



Campeloma ponderosum Say. 



Illinois River (Calkins, Rea) ; Wabash and Ohio rivers (Hink- 

 ley) ; Ohio River (Marsh) ; Southern Illinois (Ulffers) ; Chicago, 

 Cook Co. (Velie). 



Conrad says of this shell (New Fresh-water Shells, p. 12) : 

 "A common inhabitant of all the rivers of the west, from the 

 northern districts of Illinois and Indiana to the waters of the 

 Tennessee Valley." The Chicago record rests upon a number 

 of specimens said to have been collected in Calumet River by 

 Dr. J. W. Velie. The specimens are true ponderosum and are 

 in the collection of the Chicago Academy of Sciences. 



Campeloma coarctation ? Lea. 



Cache Creek, Pulaski Co. (Lyon). Specimens of a species of 

 Campeloma submitted to Mr. Bryant Walker, were thought by 

 him to be doubtfully this species. 



