240 A PARTIAL LIST OF SHELLS 



Amnicola letsoni Walk. Goat Isl. Niagara riv. 



Amnicola walkeri Pils. Frenchman's ck., Lime Lake. 



Somatogyrus isogonus Say. Niagara riv. 



Pomatiopsis lapidaria Say. Niagara Falls. 



Valvata tricarinata Say. Niagara riv. , Erie Canal, French- 

 man's ck. 



Valvata sincera Say. Lime Lake. 



Campeloma decisum Say. Niagara riv. , Lake Erie. 



Campeloma subsolidum Anth. Niagara riv. 



Vitrina limpida Gld. Lancaster, Lime Lake. 



Omphalina fuliginosa Griff. Ebenezer, Foster's Flats, 

 St. David's glen. 



Omphalina inornata Say. Hamburg, Buffalo, (in gardens), 

 Springville. 



Vitrea hammonis Strom. Chippawa. 



Vitrea cellaria Mull. Buffalo, (Bennett st.) 



Vitrea indentata Say. Rose Hill (Graham Farm), Lewiston, 

 Lime Lake, Foster's Flats. 



Zonitoides nitidus Mull. Rose Hill (Graham Farm), Wil- 

 liamsville, Chippawa. 



Zonitoides arboreus Say. Concord, Rose Hill, South Buffalo 

 between Ry. tracks, Government Woods, Fort 

 Erie, Ont. , Goat Isl., Springville, Machias, 

 Chippawa. 



Zonitoides minusculus Binn. South Bfo. betw. Ry. tracks, 

 Goat Isl., Buffalo (Bennett st. ) 



Zonitoides exiguus Stimp. Chippawa. 



Zonitoides milium Morse. Chippawa. 



Euconulus chersinus Say. Rose Hill (Graham Farm), Lime 

 Lake. 



Euconulus chersinus var. polygratus Pils. Rose Hill (Gra- 

 ham Farm). 



Gastrodonta intertexta Binn. Ebenezer, Fort Erie, Foster's 

 Flats, Goat Isl., Springville. 



Gastrodonta ligera Say. Ebenezer. 



Pyramidula alternata Say. Universal at all stations. 



Pyramidula striatella Anth. South Buffalo betw. Ry. tracks 



