HELIX. 181 



dilated, with convex base, suture well impressed ; aperture white ; 

 peristome acute, slightly expanded, white-lipped within. 



Diam. 9 mill. 



Portugal. 



H. Ponentina, Morelet and H. Lisbonensis, Pfr., are synonyms ; 

 to which may possibly be added H. martigena, Fer. 



H. SALMURINA, Servain. PI. 41, figs. 83-85. 



Narr6wly perforate, turbinate, striate ; whorls 4, rapidly enlarg- 

 ing ; with well-impressed suture ; peristome simple, the columellar 

 portion reflected. Diam. 6 mill. 



Southern France, Spain. 



Confounded by Michaud with H. revelata, but has a higher 

 spire, etc. 



H. PTYLOTA, Bourg. PI. 41, fig. 79. 



Scarcely perforate, pellucid, fragile, greenish brown, irregularly 

 striate, with short whitish hairs ; whorls 4, a little convex, rapidly 

 enlarging, the last scarcely descending at the aperture, peristome 

 acute, simple. Diam. 5*5 mill. 



Brittany. 



H. ACLEOCHROA, Bourg. 'PI. 41, figs. 76-78. 



Perforate, pellucid, shining, sharply striulate, light corneous, 

 with an obscure lighter peripheral zone ; whorls 6, moderately 

 enlarging, the last large, suddenly descending at the aperture; 

 peristome slightly white-lipped within, extremities approximating. 



Diam. 11 mill. 



Algiers. 



H. MOQUINIANA, Kaym, PL 41, figs. 71, 72 ; 98-100. 



Perforate, thin, slightly granulate (scars of hairs?), pellucid, red- 

 dish corneous; whorls 5, slightly convex, the last with subangu- 

 late periphery, scarcely descending anteriorly; peristome simple, 

 acute, slightly rosy-lipped within. Diam. 9*5-1 2'5 mill. 



Near Constantine, Algiers. 



Var. FRADINIANA, Bourg. Figs. 98-100. 



Larger, more elevated, whorls more slowly enlarging, perforation 

 wider, last whorl distinctly descending in front. 



H. PERLEVIS, Shuttlew. PI. 41, figs. 4-6. 



Very narrowly perforate, globose, striulate, with scarcely visible, 

 sparse, very evanescent minute hairs, very thin, pellucid, light 



