42 THE NADTILU8. 



Agriolimax cnmptstris (Binn.) 



h\rrissio rivuluris Say 



Lanipsilis vrntricosa f Barnes j 



Lymna-a hulimoidis rockfrelli Pils. & Ferr 



Lymmra caperata Say 



Lynttia'a humiiis moduella Say? 



Lymmca nbrussa Say 



Physa nnatina Lea 



Physa gyrina Say 



Fhysa integra Hakl.? 



Physa sayi ivarretiiauu Lea? 



Physa u-alkfri Crand. 



Pl-anorbif parvus Say 



Vallonia gracilkosta Reiiih. 



Zonitoidts arhorta (Say) 



In a recent paper Daniels and I asserted the probable oc- 

 currence of L. h. cockereUi in Wyoming, which is now con- 

 firmed. 



Following is an accoiuit of the stations visited and the mol- 

 lusks obtained at each : 



Sta. 232. reservoir where the road from Cheyenne to Cas- 

 per crosses Lo<igepole Creek, about thirteen miles north of 

 Cheyenne. 



PU-idiuin sp. 



Agriolimajr campestris (Binn.) 



hymn<ra ohru-ssa Say 



Physa sayii warreniana Lea? 



Piwwrbis parvus Say 



Su<:cinea a vara Say 



Vallonia gracHicosta Reinh. 



Sta. 233. a branch of Bear Creek, north of Horse Creek. 



Pisidium sp. 

 Lymn<ra ohrussa Say 

 Physa ivalkfri Crand. 



Sta, 234, small reservoir six miles northeast of Wheatland. 



LymiKca caperaia Say 

 Physa gyrina Say 

 Pl^norhis parvu,^ Say 



Sta. 235. bridge over Laramie river, below Uva. 



