364 THE CHICAGO ACADEMY OF SCIENCES. 
Limnea palustris Miller. Pistdium abditum Prime. 
Limnea caperata Say. Pisidium compressum Prime. 
Limne@a 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. 
Planorbisparvus Say. ' Unio pustulosus Lea. 
Segmentina armigera Say. Unio pustulatust Lea. 
Valvata tricarinata Say. _ Unio rubiginosus Lea. 
Valvata sincera Say. Unio elegans Lea. 
Vivipara contectoides W.G. Binney. Unio undulatus Barnes. 
Melantho* subsolidus Anthony. Unio verrucosus Barnes. 
Melantho* coarctatat Lea. Unio ellipsist Barnes. 
Bythinella obtusa Lea. Unio tuberculatust Barnes. 
Somatogyrus depressus* Tryon. Margaritana complanata Barnes. 
Amnticola cincinnatiensis Anthony. Anodonta footiana Lea. 
Pleurocera subulare Lea. Anodonta imbecilis Say. 
Gontobasis livescens Menke. Anodonta plana* Lea. 
3. PAPER BY W. W. CALKINS, 
In Valley Naturalist, Vol. I, No. 2, p.1, 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 calumetensts, 
Zonites upsoni. 
Amnicola ferruginea. 
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. Limnea palustris Mill. 
Unio luteolus Lam. Limnea caperata Say. 
Unio pustulosus Lea. Limnea reflexa Say. 
Unio gibbosus Barnes. Limnea stagnalis Linné. 
Spherium 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 contectotdes 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. 
tThese species have not as yet been found in the territory under consideration. 
“> ease ee 
