236 HELIX. 



H. DURIEURI, Moquin Tandon. PI. 56, figs. 79. 80. 



Narrowly umbilicated, striulate, brownish white, faintly several 

 banded, apex corneous; whorls 5, the last ventricose; aperture sub- 

 labiate within. Diam. 12 mill. 



Algeria. 



H. BERLIERI, Morelet. PI. 56, figs. 83, 84. 



Perforate, somewhat solid, rugosely striate, variegated whitish 

 and corneous; whorls 5, the last ventricose; peristoine simple, 



labiate within. Diam. 12 mill. 



Algeria. 



H. lacertarum, Bourg, is possibly identical. 



H. DJEBBARICA, Bourg. PL 57, figs. 90-92. 



Perforate, solid, opaque, lightly but sharply costulate, chalky, 

 whitish, with more or less fulvous radiating flames above, and four 

 to six interrupted bands below ; whorls 5J, the last obtusely carin- 

 ate, (evanescent towards the aperture,) slightly descending in front ; 

 peristoine simple, acute, red-lipped within. Diam. 10 mill. 



Near Or an, Algeria. 

 H. MODICA, Morelet. PI. 57, fig. 93. 



Perforate, somewhat solid, obsoletely rugosely striate, whitish, 

 unicolored or fasciate and rarely variegated with chestnut, apex 

 blackish corneous; whorls 5-5J, exserted planulate, the last obtuse- 

 ly angulated and often thread-margined on the periphery ; per- 

 istoine acute, labiate within. Diam 7 mill. 



Algeria. 



H. COTTYI, Morelet. PI. 57, figs. 96, 97. 



Moderately umbilicated, irregularly costulate, white, interrupt- 

 edly fasciate and towards the apex variegated with corneous ; 

 whorls 6, the last a little dilated ; peristome acute, scarcely la- 

 biate within. Diam 11-15 mill. 



Morocco. 



H. CISTORUM, Morelet. PI. 57, figs. 94, 95. 



Narrowly umbilicated, rather thin, closely plicately striate, ashy 

 corneous, marbled with whitish, with an interrupted chestnut zone 

 on the periphery and others, continuous, on the base ; whorls 6, 

 somewhat flattened, turgid at the suture, the last depressed, not 

 descending in front, periphery obsoletely angulated ;. peristome 

 simple, acute, scarcely labiate within. 



Diam 12 mill. 



Prov. Alemtejo, Portugal. 



