HELIX. 43 



and chestnut at the suture and carina; whorls -U, scalar, crenately 

 carinated, base smoother and more convex; peristome acute. 



Diam. 8-9 mill. 



Ins. Gran Canaria; Morocco. 



Mousson has described a Morocco representative as Var. typica 

 and given the Canary shell the title Var. Canariensis ; whereas if 

 there be any difference between them the Canary form as originally 

 described should be regarded as typical. 



H. PULVERULENTA, Lowe. PI. 9, figs. 94-96. 



Narrowly umbilicated, somewhat solid, granularly striate, brown- 

 ish ash color, with one or two tessellated, interrupted bauds; whorls 

 5, scalar, slightly convex, with simple suture, last whorl acutely, 

 comprcssly carinated ; peristome simple, margins subapproximating. 



Diam. 6-7'5 mill. 



Ins. Gran Canaria. 



It is H. argonautula, in part, of Orb. 



H. GRANOSTRIATA, Mousson. PL 9, figs. 97-99. 



Narrowly umbilicated, somewhat solid, thinly costulate-striate, 

 spirally sulcate, the reticulations forming elongated granules, greyish 

 white, sometimes interruptedly bifasciate with chestnut, suture 

 plane, subcarinate above; whorls 5, flat above, compressed carinate, 

 carina minutely irregularly crenulated, last whorl scarcely descend- 

 ing in front, a little more convex and granularly striate - below, 

 shortly impressed at the carina ; aperture white, peristome a little 

 expanded, widely labiate within, margins approaching. 



Diam. 10 mill. 



Ins. Fuerteventura and L'anzarote. 



H. MULTIPUNCTATA, Mousson. PI. 9, figs. 100, 1. 



Narrowly umbilicated, with engraved striae and spiral lines, 

 decussating into long, minute granules, maculated or marbled with 

 whitish gray and white; whorls 4, somewhat convex, the last not 

 descending, periphery angulated, base more convex; peristome 

 simple, obtuse, a little expanded, margins joined by a slight callus. 



Diam. 4'2 mill. 



Ins. Fuerteventura, (subfossil). 



H. MORATA, Mousson. Unfigured. Ins. Fuerteventura (subfossil). 



