30 HELIX 



H. SCHWERZENBACHII, Calcara. PI. 6, figs. 43-45. 



Minute orbicular, thin, pellucid, glabrous, horn3 r fulvous, 

 widely umbilicated ; whorls 3, convex, the last large, inflated. 



Diam. 0'66 mill. 



Sicily. 

 Probably a juvenile. 



H. SUDENSIS, Pfr. PL 6, figs. 37-39. 



Perspectively umbilicated, yellowish corneous, with thread- 

 like costulations ; whorls 6, narrow, the last not descending, 

 suture deep; peristome flexuously repand, columellar margin 



subpatulous. Diam. 1*5 mill. 



Candid. 

 H. BALMEI, Potiez et Michaud. PL 6, figs. 48-50. 



Openly umbilicated, elegantly costate-striate, brownish yellow ; 

 whorls 6, convex, slowly enlarging, aperture subvertical, lunar. 



Diam. 10 mill. 



Sicily. 



This is H. jlavesccns, Parr., H. striolata, Phil., H. Teresae, 

 Benoit, and H.flavida, Ziegler. The Marchioness Paulucci has 

 recentty examined the type of this species and finds it to be a 

 true species equaling and anterior in publication to H. flavida, 

 Zieo-ler, but the shell which Pfeiffer and other authors have 



o 



called H. Balmei, and which Shuttleworth has figured under 

 that name in his " Notitire," is a Hyalina, and can stand as 

 Hyalina Balmei, Shuttlew. 



H. ERDELII, Roth. PL 6, figs. 51, 52. 



Narrowly umbilicated, rather thin, closely costulate, diapha- 

 nous, yellowish corneous, paler below; whorls 5 3, convex, slowly 

 increasing, the last not descending, periphery rounded. 



Diam. 9 mill. 



Ide of Rhodes. 

 H. HAUFFENI, F. Schmidt. PL 22, figs. 15, 16. 



Rather widely umbilicated, elegantly costulate, subdiaphanous, 

 yellowish w r hitc ; whorls 4^-5, convex, the last narrow, not 



descending. Diam. 3'25 mill. 



Caverns in Cu.rniola. 



This has been made the type of a new subgenus Spelaeodiscus, 

 Brusina ; the animal is entirely blind, the visual organs absent. 



