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 laeviusculus 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 elrodi 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. cooperi 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. 
