14 HELIX. 



H. JAYLEI, Paladilhe. 



Widely umbilicated, depressed, subdiscoidal, regularly rugosely 

 costulate, somewhat chalky, whitish straw-color, apex somewhat 

 ros"y; whorls 5, slightly convex, rapidly increasing, the last large, 

 a little descending in front; aperture suboblique, rounded-lunar, 

 peristome simple, acute, labiate within, margins approaching. 



Diam. 12 mill. 



Tangiers. 

 Var. RUSTICULA, Palad. 



Umbilicus narrower, spire more elevated, apex smaller, black- 

 ish, costulations stronger, more irregular, whorls more convex 

 above, more rapidly increasing. Diam. 14 mill. 



Tangiers. 



Paladilhe, after pointing out the differences between this form, 

 which he describes as a species, and H. Jaylei, thinks it not improba- 

 ble that they will prove identical. Kobelt reduces rusticula to the 

 rank of a variety. I am unable to figure the species because my 

 copy of the work containing the description is incomplete, in want- 

 ing the plate referred to in the text. 

 H. SUBMERIDIONALIS, Bourg. PI. 3, figs. 98-100. 



Narrowjy umbilicated, whitish, with five interrupted chestnut 

 zones, strongly striate; whorls 6, scarcely convex above, rapidly 

 increasing, the last rounded, slightly descending in front; peristome 

 acute, brown-lipped within. Diam. 10 mill. 



Algiers. 



This specific name was originated for an assemblage of species 

 now recognized as distinct, and is better limited to the Algerian 

 form figured by its author, as typical; perhaps should be suppressed 

 altogether. 

 H. CAPERATA, Mtg. PI. 3, figs. 1, 3-5, 12, 13. 



Moderately umbilicated, closely striate, whitish or yellowish 

 with brownish or corneous bands, maculations or interrupted striga- 

 tions; whorls 6, slightly convex, slowly increasing, the last not 

 deflected, base more convex, peristome white-lipped, acute. 



Diam. 8-11 mill. 



Western Europe. 



It is H. striata, Drap. (in part), H. crenulata, Dillw., H. fasciolata, 

 Drouet, H. intersecta of numerous authors. 

 Var. BARCINENSIS, Bourg. Figs. 3-5. 



Narrowly umbilicated, irregularly plicate-striate, ashy white or 

 light brownish, fasciated and maculated with chestnut, smoother 



