126 THE NAUTILUS. 



Lymnaea obrussa Say (= desidiosa Binn.). 

 Ancvlus sj).? Braliiini's Sjjrings, west ol Huntsville. 

 Ancylus sp. nov. Mns^tiii's Lsike, two miles iiojtli of Huntsville. 

 Ancyius sp. Collected from Braliam's Springs, west of Hunisville. 

 Planorbis parvus Say. 



Planorbis parvus Say, var. A minute form from Mastin's Lake, 

 which may prove to be new. 

 Planorbis bicarliiatus Say. 

 Planorbis alabamensis Pils. ? 

 Planorbis trivolvis Say. P'lat form. 



Physida. 



Physa sp. These shells collecK d in Mastin's Lake are probably 

 crocata Lea (Walker), wliicli is, however, only a lorm oi microstoma 

 Hald. (Crandall). See Nautili s, Vol. XV, p. 70. 



Piiysa halei Lea. Braliam Sprin<is. 



Physa distorta Hald. From Big Spring Creek. 



Auriculidcs. 

 Carychium exile H. C. Lea. 

 Carychium nanodes Clapp. 



Pleuroceratida. 

 Goniobasis striatula Lea. 

 Pleurocera excuratum Con. 



Pleurocera brumbyi Lea. This and the two preceding species were 

 collected from Big Spring Creek. 



Pleurocera currierianum Lea. From Bird Spring- 

 In " The Fresh AVater and Land Shells of Alabama," by Dr. 

 James Lewis, ]\L D., Goniohnsis perstriata Lea and Gouiohasis de- 

 campii Lea are listed from Huntsville. But like many other sjiecies 

 in our smaller streams, they may be already exterminated by the 

 ducks and geese. Campeloma liDia Anthony and Sowotogyriis cur- 

 rierianus I<ea are also given as coming from Huntsville, but 1 ob- 

 tained no specimens. 



Viviparida. 

 Vivlpara contectoides Binn. 

 Campeloma coarctata Binn. (non Lea). From Bird Spring. 



