JULY, 1906. 
NOTES ON WISCONSIN MOLLUSCA. 
97 
Quadrula (Fusconaia) pyramidata Lea 
"North in the Mississippi to Wisconsin," Simpson, Syn. 
Xaiades, p. 790. 
Quadrula (Fusconaia) kirtlandiana Lea. 
"North to Wisconsin?," Simpson, Synopsis, p. 791. 
Quadrula (Fusconaia) ebena Lea. 
11004, "Wis.," Wiswall collection. Between Prairie du Chien 
and De Soto, Bunde & Upmeyer collection, C. E. Brown. 
Quadrula (Rotundaria) tuberculata Rafinesque. 
10689, Sugar river at Brodhead, Green Co., H. H. Hayssen. 
11027, 11028, "Wis.," Wiswall collection. 
104. Sphasrium vermontanum Prime. 
Sandy beach of Lake Michigan at Milwaukee ; north shore of 
Lake Winnebago, one-half mile west of High Cliff, Calumet Co. 
This is a species of the larger lakes, which has been confused with 
S. solidulum ; see Mollusca of the Chicago Area, p. 394. The 
identification is still open to some question according to Dr. Sterki. 
Sphaerium solidulum Prime. 
Kenosha, Mrs. E. C. Wiswall's list. "Wisconsin," Prime, 
Smith. Misc. Coll., VII, 36. These citations may be in error for 
the preceding species. 
105, Sphaerium rhomboideum Say. 
Mud Creek east of Teutonia avenue bridge, and Honey Creek 
near Layton Park; abundant at both localities. Occurs with 
S. simile. 
106. Sphaerium stamineum Conrad. 
North bank of Milwaukee river at Lindwurm; Mud Creek, 
half a mile east of Teutonia avenue ; Kinnickinnic river near 
Eleventh avenue. 
107. Sphaerium striatinum Lamarck. 
Very abundant in Mud Creek, on a gravelly bottom, half a mile 
east of Teutonia avenue, with the preceding and following; dead 
shells at the cement mills, Lindwurm. "Wisconsin," Prime, 
Smith. Misc. Coll., VII, 37. 
