172 BULLETIN UNIVERSITY OF MONTANA 



Genus Conulus Fitzinger, 1833. 

 Conulus fulvus Mull.; one specimen from Wibaux; a few from Mis- 

 soula. 



Subfamily Ariophantinae Pilsbry. 



Genus Zonitoides Lehmann, 1862. 

 Zonitoides minusculus Binn.; Wibaux. 



Zonitoides laeviuscuius Sterki; close to vars. of minuscula; Wibaux. 

 Zonitoides conspectus Bland; Wibaux. 



Zonitoides arboreus Say; sparingly along the Bitter Root River. 

 Family LIMACIDAE. 



Genus Agriolimax Moerch, 1868. 



Agriolimax campestris Binn., var. montanus Ing.; Missoula, Flathead 



Lake. 



Family ENDODONTIDAE. 



Subfamily Endontinae Pils. 

 Genus Pyramidula Fitzinger, 1833. 

 Subgenus Patula Held, 1837. 

 Pyramidula eirodi Pils.; Banks of McDonald Lake, Mission Mount- 

 ains from 3,000 to 7,500 feet. 



Pyramidula strigosa Gld.; Tobacco Root Mountains, Bitter Root 

 Mountains. 



Pyramidula strigosa Gld.; var. ceoperi W. G. B.; Mission Mountains, 

 banks of Flathead Lake, Swan range of the Kootenai Mountains. 



Pyramidula strigosa Gld., var. alpina; Mission Mountains above 7,800 

 feet altitude. 



Pyramidula solitaria Say.; Missoula; Mission Mountains from 2,300 

 to 7,500 feet. 



Subgenus Gonyodiscus Fitz. 



Pyramidula striatella Anth.; Wibaux; a few from Missoula. 



(Superfamily ELASMOGNATHA.) 



Family SUCCINEIDAE. 



Genus Succinea Drap. 



(Amphibinae.) 



Succinea avara Say; Wibaux. 



Succinea obliqua Say; Wibaux. 



Succinea grosvenorii Lea; Wibaux. 



Succinea nuttalliana Lea; Flathead Lake. 



Family LIMNAEIDAE. 



Genus Limnaea. 



Limnaea palustris Mull.; Wibaux, Flathead Lake, Swan Lake, Madi- 

 son Lakes, Missoula. 



Limnaea bulimoides Lea; Wibaux. 



Limnaea humilis Say; Wibaux. 



