HELIX. 199 



H. CHEFFANA, Bourg. Tunis. 



H. ACORTA, Letourn. et Bourg. Tunis. 



Subsection VII. NUMMULINA, Kobelt. 1871. 



H. NUMMUS, Ehrenb. PI. 44, figs. 45, 46. 



Narrowly umbilicated, pellucid, yellowish brown, with whitish 

 stride; whorls 5J, the last with acutely carinated periphery; lip 

 thin, subreflected. Diam. 17 mill. 



Syria. 



The synonyms are H. Hedenborgi, Pfr., and H. oxygyra, Boiss. 



H. PROMETHEUS, Bottger. PL 44, figs. 47-49. 



Larger than H. nummus, with much larger umbilicus, base not 

 rugosely striate, very obsoletely granulated, distinctly descending 

 at the aperture, peristome sublabiate with white within. 

 Diam. 17'5-20'5 mill. 



Caucasus. 



\ 



H. SPIROXIA, Bourg. PI. 44, figs. 50, 51. 



Subperforate, not shining, subpellucid, striate above and below, 

 with spiral, subpilose epidermal lines, corneous, carina whitish, 

 rugose, subcrenulated ; whorls 6, rapidly increasing, suture linear, 

 last whorl shortly descending in front; lip callously thickened 

 within. Diam. 14 mill. 



Alexandretta, Syria. 



H. GENEZARETHANA, Mousson. PI. 44, figs. 52, 53. 



Moderately umbilicated, thickly membranaceous, subpellucid, 

 smooth, striate, very minutely and elegantly granular, fulvous or 

 paler, not shining, suture linear; whorls 5, the last not descending, 

 base inflated round the umbilicus; peristome simple, lower margin 

 thinly expanded, labiate within, columella broadly reflected. 



Diam. 22 mill. 



Tiberias, Palestine. 

 H. Tiberana, Mouss. is a synonym. 



H. JASONIS, Dubois. PI. 45, figs. 54, 55. 



Widely umbilicated, rather thin, strongly costulate-striate, the 

 interstices very minutely granular, subdiaphanous, light-corneous, 

 or whitish, suture plane, thread-like; whorls 6J, periphery strongly 

 carinated, carina subcrenate, last whorl scarcely descending in front ; 

 peristome not labiate, reflected below. Diam. 24 mill. 



Mingrelia. 



