HELIX-HELICELLA. 175 



Var. gattoi Kobelt. PL 27, figs. 80, 81. 



Larger, with wider umbilicus, more cylindrical body-whorl and 

 less intense, more speckled color-pattern. 



H. LAMPEDUS^E Kobelt. PL 27, figs. 77, 78, 79. 



Shell narrowly and compressedly perforate, globose-conic, rather 

 solid, rudely and irregularly ribbed-striate and malleated, slightly 

 smoother below, the riblets passing into the umbilicus; whitish, 

 variously marked with brown streaks and spots, usually having a 

 broad white middle zone with brown spots radially arranged above 

 it and coalescing below ; below the central zone there is a series of 

 interrupted and coalescing brown bands and often, a broad intensely 

 colored brown band. Whorls 6, rather regularly increasing, 

 separated by a linear suture, embryonal whorl minute, smooth, the 

 following slightly convex, the last somewhat inflated, especially 

 below ; at first slightly descending, then abruptly deflected. Aper- 

 ture oblique, subcircular, deeply lunate ; peristome acute, simple 

 having a distinct buff lip within the brown margin ; throat gray- 

 blue, showing bands within ; margins somewhat converging, hardly 

 united ; columellar margin slightly dilated, reflected at the insertion. 

 (Kob.*) Alt. 14*, greater diam. 18, lesser 16 mill. 



Island of Lampedusa. 



H. lampedusce KOB., Rossm. Icon. n. f. iv, p. 85, f. 674, 675. 



This pretty local form of the variabilis group is distinguished from 

 the Sicilian forms by its narrower umbilicus and rougher sculpture. 



H. MESOSTENA Westerlund. PL 44, figs. 77, 78, 79. 



Shell narrowly umbilicated, the umbilicus nearly closed, somewhat 

 widened at the opening ; depressed conoidal, very closely, regularly 

 finely striated ; chalky strong opaque, whitish banded with dark 

 seldom unicolored. Apex blunt. Whorls 6-6 , slightly convex or 

 flattened, somewhat angular at the suture, slowly increasing, the last 

 whorl somewhat larger, compressed, indistinctly angular in the 

 middle, slowly but deeply descending in front. Aperture very 

 oblique, lunate-rounded, sometimes somewhat oval ; peristome 

 straight, sharp, white-lipped within, the terminations converging, 

 columellar margin hardly dilated. 



Alt. 6J-7, diam. 10 mill. ( Tf.) 



Crete at Kania, Kalathines, Kandia, Archanes, Viano and Sitia. 



