^SK 



' \V OF THE \i 



HELIX. ; 129 



Var. LINUSJE Calcara. PL 37, fig. 58. 



Smaller than type, with more globose and thicker shell and larger 

 aperture. 



Ins. Linosa, near Malta. 



H. linuisiana Benoit is the same. 



Var. SUBANGULATA Issel. 



Shell smaller, more solid, aperture subangulate. Malta. 



Letourneux and Bourguignat describe but do not figure vars. 

 minuta and pelagosana from Tunis. 



H. PUNICA Morelet. PI. 40, figs. 6-9. 



Imperforate, globosely depressed, transversely dilated, lightly 

 striate, with decussating revolving striae, white, with four subequal 

 brown bands ; spire conoid, whorls 5, slightly convex, regularly in- 

 creasing, the last rounded, deflexed at aperture ; aperture very ob- 

 lique, truncate-oblong, showing the bands within ; peristome narrowly 

 reflected, slightly labiate, widened on columella, brownish. 



Diam. 31, alt. 20 mill. 



Constantine, Algiers. 

 H. CONSTANTINO Forbes. PI. 37, figs. 60-62. 



Imperforate, subglobose, striatulate, shining, whitish, five-banded, 

 bands brown, sometimes obselete, whorls 5, convex, the last deflected 

 anteriorly ; aperture rounded-lunate, peristome expanded, sublabiate, 

 columella margin with a heavy subdentate callus. Diam. 27 mill. 



North Africa. 



H. drt(K Terver is a synonym. 



Var. FLEURATI Bourg. PL 37, fig. 66. 



Substance of shell calcareous ; form more globular ; whorls less 

 rapidly increasing. 



Tunis. 

 H. BOGHARIENSIS Debeaux. PL 39, figs. 1-3. 



Imperforate, more or less depressed globose, typically thin shelled, 

 but sometimes rather heavy, with fine incremental striae, coarser at 

 sutures, and sparse, short, broken impressed transverse lines, some- 

 what malleate, dirty white or yellowish, with five (sometimes four) 

 bands, showing through the shell ; whorls 5, the last inflated and 

 greatly descending at aperture ; aperture oblique, wide, with a thin 

 broadly reflected peristome, slightly labiate within ; fauces white. 



Diam. 36 mill. 



Bogliar and %oukhrari, Algiers. 



Very near to H. constantince. 



