698 BULLETIN UNITED STATES GEOLOGICAL SURVEY 



Order PULMONATA. 



Suborder GEOPHILA 



Family HELIGID^. 



Subfamily VITRININxE. 

 YiTEiNA, Drap. 



limpida^ Gould. — Rare. Cedar and Kaox Coonties. 



Hyalina, (Fer.) Gray. 



nitida, Miiller. — Eare. Dixon and Knox Counties. 



arhorea^ Say. — Common in eastern counties. 



viridula, Menke. — Common all over Nebraska. 



indentata, Say. — Common all over Nebraska. 



Umatulaf, Ward. — Eare in Dakota County. Never found it alive. 



minuscula, Binney . — Common . 



milium f, Morse. — Kare. Found dead specimens in Burt and Dakota 



Counties. 



Mnneyana, Morse. — "Rare. Found one only in Burt County. 



exigua, Stimpsou. — Rare. Dakota and Cedar Counties. 



ligera, Say. — Along the Missouri bluii's. 



demissa, Binney. — Rare. Richardson County. 



fulva, Draparnaud. — Common. 



interna, Say. — Nemeha, Richardson, and Pawnee Counties. 



* (?) lineata, Say. — Common. 



Macrocyclis, Beck. 



concava, Say. — Rare, but oecasioaally found in many counties in 

 Eastern Nebraska. 

 LiMAX, Linn. 



campestris, Binney. — Have fonnd it only in the eastern counties. 



Subfamily HELICIN^. 



Helix, Linn. 



soUtaria, Say. — Rare. Richardson County. 



strigosa, Gould. — Common. 



alternately Say. — Most widely diffused. 



cooperi, W. S. Binney. — Rare. Cedar and Knox Counties. 



perspectiva, Say. — Otoe, Cass, Nemeha, and Richardson Counties. 



striatella, Anthony. — Common. 



labyrintMca, Say. — Along the Missouri blnffs. 



leporina, Gould. — Rare. Richardson County. 



stenotremaf, Fer. — Only found one dead shell in Richardson County 



Mrsuta, Say. — Common. 



monodon, Rackett. — Common. 



palUata, Say. — Rare along Missouri bluffs. 



* Morse regards this species as a separate genus, which he calls Helicodiscus. 



