76 HELIX. 



flattened, the last with a black band surrounding the peristome;; 

 peristome patulous, acute, subreflected. Diarn. 20 mill. 



Oajaca, Mexico. 



H. VERRILLI, Ancey. Unfigured. Durango, N. W. Mexico. 

 Subsection IV, PRATICOLA, Strebel, 1880. 



H. OCAMPI, Strebel. PI. 19, figs. 79, 80. 



Perforate, rather solid, slightly translucent, dull yellowish horn 

 color, or reddish brown with yellowish suture, finely irregularly 

 striate, with microscopic spiral lines; whorls 5?, somewhat convex, 

 the last inflated, descending in front, constricted behind the aperture ;: 

 peristome shortly reflected, white. Diam. 12 mill. 



Mirador, Mexico. 



H. ampla, Pfr. an unfigured species is possibly identical : if so, it 

 should take priority. 



H. BERLANDIERIANA, Moric. PI. 19, figs. 81-83. 



Narrowly umbilicated, rather thin, somewhat translucent, sub- 

 opaline, scarcely striate, light ashy white or yellowish white, or 

 greenish yellow, sometimes with a single chestnut band, suture deep : 

 whorls 4i-5, rather convex, the last scarcely descending in front, 

 rounded, base subinflated, constricted behind the aperture ; peristome 

 white, labiate within, reflected. Diam. 12 mill. 



Prov. Tamaulipas, Mexico, Texas, Arkansas. 



If. pachyloma, Menke and H. virginalis, Pfr. are synonyms. 



H. GRISEOI.A, Pfr. PI. 19, figs. 84-86. 



Narrowly umbilicated, thin, subtranslucent, a little shining, ob- 

 liquely striate, greyish, with a light fulvous, white-margined band, 

 suture impressed ; whorls 4-4?, scarcely convex, not descending in 

 front, base subinflated ; aperture showing the exterior band, peris- 

 tome simple, slightly reflected, white, margins distant. 



Diam. 9'5 mill. 



Near Vera Cruz, Mexico, Texas, Nicaragua.. 



Var. fi. More elevated, light corneous, with a single white margined 

 band. Diam. 10 mill. 



The synonymy includes H. cicercula, Fer., H. splendidula, Anton, 

 and H. albozonata, and H. albocincta, Binney. 



