HELIX. 255 



Differs from H. Rozeti in size, closer and more regular strife, 

 more acute carina, flatter whorls, the last not descending, peristome 

 not labiate, umbilicus narrower. 



H. LACOSTEANA, Morlet. PI. 62, fig. 5. 



Widely umbilicated, discoidal, arcuately plicate-striate, whitish, 

 with nebulous chestnut maculations; whorls 6 J, suture subcrenulated, 

 margined, last whorl with a sharp carina, flattened above, more 

 convex below, scarcely descending at the aperture ; peristome simple, 

 acute. Diam. 22 mill. 



Chott-Djerid, Djebel-Aidoudi. 



H. BRONDELI, Bourg. PL 62, figs. 20-22. 



Narrowly umbilicated, somewhat fragile, diaphanous, costulate; 

 whorls 5J, convex, with well-impressed suture, the last subtumid 

 above, convex below, crenulately carinated, peristome acute, not 

 labiate. Diam. 11 mill. 



Algeria. 



H. ROUVIEKIANA, Bourg. PL 62, figs. 14-16. 



Narrowly umbilicated, somewhat thin, subpellucid, corneous, 

 sometimes subflammulate above, strongly striate; whorls 6, slowly 

 increasing, scarcely convex above, convex below, descending a little 

 at the aperture, periphery obtusely carinated, carina vanishing in 

 front; peristome simple, acute. Diam. 10 mill. 



Ejabylcea. 



H. EXPLANATA, Mull. PL 62, figs. 11-13. 



Rather widely umbilicated, lightly striate, yellowish white or 

 fulvous, smoothish, subplane above; whorls 5, with compressed 

 carina, convex below, slightly descending in front ; peristome acute, 

 white-lipped within. Diam. 12-17 mill. 



France, Algiers. 



H. albella, Drap. is a synonym. H. maculata, Miill. is doubtfully 

 identified as a juvenile. 



H. MORAGUESI, Kobelt. PL 62, figs. 9, 10. 



Widely umbilicated, plane above, somewhat solid, whitish or 

 very obsoletely chestnut banded, strongly, obliquely costulate, with 

 intervening strise; whorls 5 2, carina crenulated, base convex, indis- 

 tinctly cristate around the umbilicus; peristome acute, Avhite-lipped 

 within. Diam. 12 mill. 



Ins. Palma, Balearic Archip. 



