THE NAUTILUS. 59 



Pyramidula striatella catskillensis, Pils. Wauwatosa; Mishicot. 



Helicodiscus lineatus, Say. Vicinity of Milwaukee. 



Punctum pygmaeum, Drap.? "Whitefish Bay. 



Succinea retusa, Lea. Vicinity of Milwaukee. 



Succinea oralis, Say. Vicinity of Milwaukee. Abundant. 



Succinea ovalis, cf. totteniana, Lea. Vic. of Milwaukee. 



Succinea avara, Say. Vicinity of Milwaukee. 



B. UnionidjE. 



Lampsilis ventricosus, Barnes. Milwaukee River ; Clear "Water 

 Lake, Oneida Co.; Lake Winnebago. 



Lampsilis luteolus, Lam. Milwaukee River ; Okauchee Lake, 

 Golden Lake and Fox River, Waukesha Co.; Clear Water Lake, 

 Oneida Co.; Boom, Winnebago Co.; Two Rivers, Manitowoc Co.; 

 Lake Winnebago ; ? ancient shell heaps at AVinneconne, Winne- 

 bago Co. 



La7npsilis superiorensis, Marsh. ? Two Rivers, Manitowoc Co. 



Lampsilis ligamentinus, Lam. Milwaukee River; Fox River, 

 Waukesha Co.; Clear W T ater Lake, Oneida Co.; ? Winnebago Lake 

 at Menasha. 



Lampsilis rectus, Lam. Fox River, near Big Bend, Waukesha 

 Co. (pathologic). 



Lampsilis iris, Lea. Milwaukee River at Milwaukee. 



Lampsilis ellipsiformis, Conrad. Milwaukee River ; Fox River, 

 Waukesha Co.; Hika, Manitowoc Co. 



Lampsilis alalus, Say. Lake Winnebago at Menasha ; Two 

 Rivers, Manitowoc Co. 



Lampsilis gracilis, Barnes. Fox River and Lake Winnebago at 

 Menasha; Boom, Winnebago Co. 



Plagiola donaciformis, Lea. Kinnikinnick River, Milwaukee. 



Strophitus edentulus, Say. Milwaukee and Kinnikinnick Rivers ; 

 Hika, Manitowoc Co. 



Anodonta cataracta, f Say. Maple Lake, Oneida Co.; Golden 

 Lake, Waukesha Co. 



Anodonta imbecilis, Say. North shore of Lake Winnebago (juv.). 



Anodonta grandis, Say. Milwaukee River; Wauwatosa; Fox 

 River, Okauchee Lake and Golden Lake, Waukesha Co.; Two 

 Rivers, Manitowoc Co.; Winnebago Lake at Menasha; Maple Lake, 

 Oneida Co. 



