HELIX. 225 



H. GRASSETI, Tarnier. PI. 53, figs. 44, 45. 



Subcovered perforate, striate, decussated, whitish with greyish 

 brown continuous or interrupted lines; whorls 4?, the last not des- 

 cending in front, periphery obtusely angulated, base more convex ; 

 aperture greyish, peristome simple, acute, with a slight whitish 

 interior callus. Diam. 16 mill. 



Ins. Grand Canary. 



H. planata, Webb and Berth, is a synonym. It is probably, 

 like its predecessors, only a variety of H. Pisana, 



H. PISANOPSIS, Servain. PI. 53, figs. 49, 50. 



The work in which this species is described is not accessible to 

 me ; the figures refer to the variety. 



Portugal. 

 Var. AEGUSA, Kobelt. 



Very narrowly perforate, solid, chalky, white or variously con- 

 tinuously or interruptedly banded with chestnut ; whorls 6, slowly 

 increasing, the last inflated, scarcely descending in front ; aperture 

 purplish, showing the bands, peristome reddish, with orange lip. 



Diam. 18 mill. 



Western Sicily. 



H. HIEROPHANTA, Mabille. PL 53, figs. 46, 47. 



Subimperforate, solid, opaque, dull striate, yellowish white, with 

 dark chocolate lines in spiral and radiating series, and spiral bands, 

 apex chocolate ; whorls 4 5, rapidly enlarging, the last large, 

 rounded angular, not descending, convex below; peristome acute, 

 remotely labiate within. Diam. 16 mill. 



Ins. Teneriffe. 



Belongs to the group of H. Pisana, but is more globose. 



H. DECORATA, Pfr. PI. 53, figs. 51, 52. 



Subperforate, thin, striulate, whitish, with interrupted chestnut 

 lines, sometimes confluent ; whorls 4, convex, the last descending ; 

 aperture brownish, peristome scarcely lipped within, columellar 

 margin membranaceous, dilated, strongly reflected. 



Diam. 18 mill. 



Hob. unknown. 



H. DEHNEI, Rossm. PI. 53, figs. 58-61. 



Imperforate, somewhat solid, slightly decussated, whitish, rosy or 

 yellowish, generally with one or two, or several continuous yellow- 

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