250 HELIX. 



flattened, the last rounded, rather narrow, a little descending in 

 front; peristome simple, acute. Diana. 15 mill. 



Sarafschan, Turkestan. 



H. EBUSITANA, Hidalgo. PI. 61, figs. 48, 49. 



Moderately umbilicated, somewhat solid, with very close thread- 

 like strise, corneous, with chestnut bands, and irregular opaque 

 white maculations, spire very obtuse, or plane ; whorls 6, flattened, 

 the last anteriorly deflected, base convex, smoothish about the um- 

 bilicus ; peristome simple, white-lipped within. 



Diam. 16 mill. 



Ins. Ebuso, Balearic Is. 



H. STOLICZKANA, Nevill. PL 61, figs. 62-64. 



Moderately umbilicated, irregularly striate above, striae obsolete 

 below, white, with two chestnut bands, apex brown ; whorls 5 J, 

 .suture distinct ; peristome slightly thickened within. 



Diam. 16'5 mill. 



Yarkand. 



A small variety, about half-size, not quite so flat, the bands obso- 

 lete, occurred at Tangitar. 



H. HAMACENICA, Raffray. PI. 61, figs. 65-67. 



Narrowly umbilicated, obliquely striulate, solid, chalky, white, 

 apex corneous ; whorls 6, slowly increasing, with impressed suture, 

 the last whorl rounded, subcompressed, slowly descending above ; 

 peristome simple, acute, labiate within, margins approximating, 

 joined by a thin callus. Diam. 15 mill. 



Hamacen, Abyssinia. 

 H. SUBNIVELLIANA, Bourg. PI. 61, figs. 69-71. 



Narrowly umbilicated, rather solid, subpellucid but chalky, 

 .strongly striate, white, the apex blackish or brownish ; whorls 6, 

 at first slowly increasing, the last whorl rapidly, suture impressed, 

 last whorl rounded, not descending ; peristome acute, not thickened 

 within, margins joined by an inconspicuous callus. 



Diam. 15 mill. 



Hamacen, Abyssinia. 



Unfigured species oj Helicella. 



H. SANTORINA, H. THEKASINA, H. FOUQUEI, H. NOMECHOSI, 



Letourneux. Ins. Santorin, Greece. 



H. SUSPECTA, Westerl. Crete. 



H. AMBIELIANA, Charp. France. 



