252 HELIX. 



It is H. taurica, Partsch and H. chersonesica, Miihlf. The first 

 figures represent the state of the shell as usually found in collec- 

 tions ; it is only recently that Clessin (Mai. Blatt. N. S. VI. 46) 

 has made known the fact that these are juveniles, and that in the 

 adult (fig. 72) the carina has nearly vanished. 



H. KETOWSKII, Clessin. PL 61, figs. 76-78. 



More strongly striate, with higher spire and narrower umbilicus 

 than the preceding species. Diain. 13 mill. 



Grimed. 



H. CRENIMARGO, Kryn. PI. 62, figs. 3, 4. 



Narrowly umbilicated, closely, sharply striate, white, with a 

 superior corneous band, and several narrower ones below ; whorls 

 4J, the last subtumid above, convex below, periphery crenulately 

 carinated; peristome acute, sublabiate within. 



Diam. 8 mill. 



Caucasus. 



H. Piatigorskiensis, Bayer is a synonym. 



Var. OBTUSIOR, Mousson. 



Carina less crenulated, no superior band, inferior lines grey- 

 ish. 



H. CORRUGATA, Gmel. PI. 61, figs. 79-81. 



Rather widely umbilicated, costulate, whitish, with chestnut 

 spiral lines below; whorls 4 -5, tumid above, convex below, 

 periphery with a crenulated carina; peristome acute, chestnut 

 lipped within. Diam. 13'5 mill. 



Italy, Sicily. 



It is H. rugosa, Lam. H. Groyana, Fer., and H. Gargottoe, 

 Phil. 



H. PR^CLARA, Cafici. PI. 62, figs. 86-88. 



Narrowly umbilicated, yellowish, with three or four chestnut 

 bands, one of them above the periphery, costulate; whorls 5, 

 carinate at the suture, the last with a crenulated carina, becoming 

 evanescent towards the aperture, flattened above, turgidly convex 

 below ; aperture white-lipped within. Diam. 8 mill. 



Sicily. 



H. DORMIENS, Benoit. PI. 62, figs. 89-91. 



Moderately umbilicated, costulate-striate, whitish, with chestnut 

 strigations above, multifasciate with chestnut below, spire subele- 



