364 THE CHICAGO ACADEMY OF SCIENCES. 



Limncea palustris Muller. Pisidium abditum Prime. 



Limncea caperata Say. Pisidium compressum Prime. 



Limncea umbrosus *Say. Unio cornutus Barnes. 



Physa gyrina Say. Unio gracilis Barnes. 



Physa heterostropha Say. Unio gibbosus Barnes. 



Planorbis campanulatus Say. Unio luteolus Lam. 



Planorbis trivolvis Say. Unio occidens* Lea. 



Planorbis bicarinatus Say. Unio rectus Lam. 



Planorbis parvus Say. Unio pustulosus Lea. 



Segmentina armigera Say. Unio pustulatus\ Lea. 



Valvata tricarinata Say* Unio rubiginosus Lea. 



Valvata sincera Say. Unio elegans Lea. 

 Vivipara contectoides W. G. Binney. Unio undiilatus Barnes. 



Melantho* subsolidus Anthony. Unio verrucosus Barnes. 



Melanthd* coarctatcft Lea. Unio ellipsis^ Barnes. 



Bythinella obtusa Lea. Unio tuberculatus\ Barnes. 



Somatogyrus depressus* Tryon. Margaritana complanata Barnes. 

 Amnicola cincinnatiensis Anthony. Anodonta footiana Lea. 



Pleurocera subulare Lea. Anodonta imbecilis Say. 



Goniobasis livescens Menke. Anodonta plana* Lea. 



3. PAPER BY W. W. CALKINS, 



In Valley Naturalist, Vol. I, No. 2, p. I, Nov., 1878, and Vol. 

 II, p. 53, 1880, published at St. Louis, gives descriptions of the 

 following species from the Chicago area, besides valuable notes: 

 Succinea calumetensis. 

 Zonites upsoni. 

 A mnicolaferruginea. 



4. COLLECTING ABOUT CHICAGO. 



BY FRANK C. BAKER. 



Sports Afield, August, 1897, Vol. XIX, No. 2. 

 The following species are listed from the southern region: 



Anodonta footiana Lea. Limncea palustris Mull. 



Unto luteolus Lam. Limncea caperata Say. 



Unio pustulosus Lea. Limncea reflexa Say. 



Unio gibbosus Barnes. Limntea stagnalis Linne. 



Sphcerium striatinum Lam. Planorbis trivolvis Say. 



Vitrea arborea Say. Planorbis campanulatus Say. 



Vitrea indentata Say. Planorbis parvus Say. 



Conulus fulvus Drap. Segmentina armigera Say. 



Pupa contracta Say. Vivipara contectoides W. G. Binney. 



Campeloma decisum Say. 



Campeloma subsolidum Anthony. 



Pleurocera subulare Lea. 



*For the correct position of these names, which are synonymous, the reader is referred 

 to the body of this work. 



fThese species have not as yet been found in the territory under consideration. 



