JULY, 1906. 
NOTES ON WISCONSIN MOLLUSCA. 
91 
Lake Creek, Oneida Co. 7244, Dodgeville, Iowa Co., R. Marks. 
11037, 11039, " Wisconsin River," ^Wiswall collection as "U. 
canadensis." Clem Lake, Waupaca Co., C. E. Brown, Aug., 1903. 
Between Prairie du Chien and De Soto. Bunde & Upmeyer collec- 
tion, C. E. Brown. "Lake Ellen, Wis. (canadensis) , Dr. J. J. 
Brown," Naut, V, 81. 
Lampsilis occidens Lea. 
"In the Lea collection from Nashotch, Wis.," as "Unio 
cariosus " but probably belonging to this species ; see Naut., VIII, 
123. The locality is evidently a misspelling for Nashotah, 
Waukesha Co. According to Dr. von Ihering, XV, 50, this species 
is not a synonym of the preceding, but distinct. Lampsilis cariosa 
Say, is not otherwise reported from Wisconsin. The three forms, 
ventricosa, occidens, and cariosa, are all very similar and difficult 
to distinguish. 
81. Lampsilis (Eurynia) luteola Lamarck. 
Milwaukee river, above Lindwurm ; Golden Lake and Ballad's 
cottage, Okauchee Lake, Waukesha Co. ; Boom, and ancient shell 
heaps at Winneconne, Winnebago Co. ; Lake Winnebago, near 
High Cliff, Calumet Co. (doubtful) ; Two Rivers, Manitowoc 
Co.; Clear Water Lake and Creek, Oneida Co.. 12652, Fox 
River, near Big Bend, Waukesha Co., C. E. Brown. 11016, 
11017, "Wis.," Wiswall collection. Beasley Brook, She-she-pe- 
comeo Park, W r aupaca Co., C. E. Brown, Aug., 1903. 
Lampsilis (Eurynia) superiorensis Marsh. 
One specimen, from Two Rivers, Manitowoc Co., may repre- 
sent this northerly race. For description, see the Nautilus, X, 
103 ; PI. I, p. 121. 
Lampsilis (Eurynia) borealis A. F. Gray. 
Said to connect with luteolus "in Wisconsin," Naut., V, 88 ; 
also 113. 
Lampsilis (Eurynia) radiata Gmelin. 
"There is a shell in the L T . S. National Museum from the north- 
west boundary of Wisconsin, which is probably this species." — 
Simpson, Synopsis, p. 536. 
82. Lampsilis (Eurynia) ligamentina Lamarck. 
Milwaukee river at Lindwurm and below Schlitz icehouse ; 
