HELIX. 23 



H. LIBYCA, Ponsonby. Libya, N. Africa. 



H. BERENICE, Kobelt. Libya, N. Africa. . 



Subsection VIII, TURRICULA, Beck. 1837. 



H. DEROGATA, Rossm. PI. 4, figs. 73-76. 



Moderately umbilicated, somewhat solid, minutely striate, shining, 

 whitish, with narrow chestnut bands above and below the periphery, 

 and narrow ones on the base; whorls nearly 5fc, scarcely convex, 

 the last depressed, rounded, not descending in front, base more 

 convex ; peristome acute, white-lipped within. Diam. 9 mill. 



Murcia, Spain. 



H. subrogata, var. ft. is a synonym. 



Var. ANGULATA, Kossm. Fig. 76. 



Usually maculosely variegated above, costulations stronger, periph- 

 ery angulated. 



H. Mureica, Guirao is a synonym. 



H. HIPPONENSIS, Morelet. PI. 4, fig. 77. 



Narrowly perforate, thin, costulate-striate, whitish, with continu- 

 ous or interrupted chestnut bands ; whorls 6, convex, the last an- 

 gulated at the periphery, not descending in front ; peristome acute, 

 slightly margined within. Diam. 10 mill. 



Algeria. 

 H. WARNIERIANA, Bourg. PL 4, figs. 78-80. 



Perforate, moderately solid, chalky, somewhat pellucid, malleated 

 by obscure striae, yellowish white, irregularly variegated with sub- 

 translucid corneous maculations; whorls 6, scarcely convex, the 

 last slightly descending in front, periphery obtusely angulated, angle 

 evanescent towards the aperture ; peristome acute, remotely white- 

 lipped within. Diam. 10 mill. 



Tunis. 



H. PYRAMIDATA, Drap. PI. 5, fig. 83-86, 99, 100, 3; PL 4, figs. 81, 82. 



Narrowly umbilicated, striulate, white, unicolored or banded and 

 variegated with chestnut, spire obtuse ; whorls 6, convex, the last 

 not descending in front, a little flattened on the base; peristome 

 acute, labiate within. Diam. 11 mill. 



Mediterranean Region. 



H. agnata, H. arenaria, H. littoralis, H. sabulosa, and H. specta,- 

 bilis, Zglr., are synonyms. 



