146 



1111 1\. 



nont. blunt parietal tooth, peristome white. thickened. broad, almost 

 riiiir I ho umbilieus. with a laruv squarely truncated denticle on 

 its riirht margin and a stout, bluntly point oil ono on its ha- 

 Diam. 1 1 mill. 



/v ' 1,/ifon. Xorthcrn Idaho. 

 11. SAI MOXKXSIS. Tryon. PI. 3$ . >'7. 



rmbilieated. thin. >hiniiur sparsely hirsute, ^roonish horn-colored. 

 growth-Wrinkles not prominont ; whorls 4-1, hardly convex. the last 

 ndinsj and deeply grooved behind the peristome. baso 

 slightly con vex: aperture very oblique, trilobed. with a small parietal 

 tooth. }>oristomo narrow. >caroelv retleeted. bearinu' two distant. 

 sliu-htly developed dentieles. Oiain. S'") mill. 



s : :iho. 



Peseribed by \V . (i. Hinney as Triple-; *'* U -fordiana. the 

 sjnvitie name preoeeuj>ied in the seetion Polyu-yra. 



H. BixoMiN.vr.v. Tryon. V -. . ~ - 



Impertorate. eoar-ely. slightly wrinkled, russet eolored. sparely 

 hir>ute: whorls 5J, eonvex. the last ii'loboso. slightly deseendino-; 

 aperture very oblivjne. lunate, with a short, narrow, somewhat 

 i-iirviiiir parietal tooth, peristome white, broad, thiekened. revolute. 

 usually quite eoneealinu' the umbilieus. Ivarinir on its basal margin 

 ail elongated, lamellar, tooth-like proeess. Diam. 17 mill. 



Kingston. Xorthcrn Idaho. 



Beseribed by W. (i. l>inney under the preoceupied name of 

 H. Hcmphilli ' 



H. Y v. Morelat. PL 30, fiu 



..bove. but quite eonvex below the aiiirnlar poriph^ 

 whorls ~\ obliquely rio.. . e. striate below. ev>nstrieted behind 



the retleeteil lip; aperture trilobate, parietal tooth very oblique. 



[y V-shaped, with a lip tooth opposite, and a smaller ereet ; 

 one: umbilieus rather wide and deep: liuht horn eolor. 

 Diam. S mill. 



Subsection 11. [8OGHOMOS - 



H. WPLB - - U-lt^. : 



W^orla 5, minutely obliquely >triate. sometimes hirsute. N 

 much contracted behind the lip: a|vrture trilobate, parietal tooth 

 almost transverse, large and blade-sha}H.\l, basal lip tooth a small 



