268 I'ltOCKEDINGS OF THE ACADEMY OF [Mcll., 



lines. The supraperipheral l^and is rather wide and dark, with distinct 

 ivhite or ichitish bands both above and below it. Above the upper white 

 band the surface is pale reddish to the white siitural Hne. Below the 

 lower white border the same reddish color prevails, but gradually fades 

 on the base to whitish around the umbilical region. The dark band 

 run§ about 2i whorls up the spire. Apex with sculpture like S. hachi- 

 tano.. Whorls 4f , the last rather deeply descending in front. Aper- 

 ture rounded-oval, the peristome thin, expanded, the dilated columellar 

 end partially covering the umbilicus. Alt. 12.4, diam. 20.6, alt. aper- 

 ture 10, width 11.5 mm.; width of umbilicus 2.4 mm. 



Browm's Canyon, Huachuca Mountains. Type No. 89,225, A. N. S. P., 

 collected by James H. Ferriss, 1904. 



This beautiful snail is the only Huachuca form I have seen which 

 seems closely related to *S. virilis. Unfortunately, the soft parts were 

 not preserved, and its exact relationships are thus uncertain. It is 

 not very imlike S. hachitana, but I can see no spiral lines on some of the 

 original lot of hachitana before me. The white bordering bands are 

 particularly conspicuous. Only a few were taken by Mr. Ferriss. 



In Bear Canyon, Huachuca Mountains, Mr. Ferriss found a few 

 specimens similar to those from Brown's Canyon, but noticeably more 

 depressed, with a smaller mouth and obtuse lip. One measures, alt. 

 11.5, diam. 20, aperture 9.8x11 mm., umbilicus 3 mm. wide. The 

 shell is also somewhat more solid, and the spiral lines are more distinct. 

 In both forms they are readily seen with a hand lens. 



Genus OREOHELIX Pilsbry. 



Helix, Patula and Pyramidula of authors. 



A new genus of Helicidce, Pilsbry, Proc. Acad. Nat. Sci. Phila., 1902, p. 511. 



Oreohelix Pils., Nautilus, XVII, p. 131, March, 1904. 



The shell is umbilicate, varying from discoidal to pyramidal, with 

 4 to 6 tubular or carinate whorls; earthy, with thin cuticle or none. 

 Embryonic whorls with radial and usually spiral sculpture and carinate 

 periphery. Aperture rounded, oval or angular, oblique, the columel- 

 lar lip dilated, the outer lip blunt or acute, uncxpanded. The sole is 

 undivided. Foot granulose and blackish above or smoothish tessel- 

 lated with gray. A pair of dorsal grooves is present and usually a (iis- 

 tinct genital groove. The tail is depressed above. No parapodial 

 furrows. 



The lung has thin-walled venation, chiefly on the cardiac side. The 

 kidney is short, but little longer than the pericardium ; has a large lumen 

 with coarsely plicate walls, and the usual reflexed ureter. The second- 

 ary ureter is closed throughout in the species examined (PI. XIX, fig. 1, 

 0. strigosa var., Pecos, New Mexico). 



