HELIX.— Platk LXXXV 



The haik-keel Helix. SlicU broadly umbilicatcd, very 

 depressed, homy, beiicuth the lens spirally very mi- 

 nutely closely striated ; spire flatly convex ; whorls 

 six, flattened, the last very sharply keeled, keel some- 

 what produced ; aperture transversely ovate ; lip thin, 

 ixpanded. 

 I'FEiFFEK, Pro. Zool. Soc. 1851 (?). 

 Hab. China. 



A depressed shar])ly keeled horny species, spirally en- 

 graved with numerous very close-set striae, and the keel 

 in fine specimens is set with hairs. 



Species 461. (Fig. a, b, Mus. Cuming.) 

 Helix sekrula. //*•/. teald lubprofundf umbilicatd. 



valj'f tlejiresaa, ilriu cuitulalu tuicorriii/nlii cu/i/rrtim 

 scutplii, tordiili alba, carinatd, carina itriit srrrulatd ; 

 iii,fniclU/u» sex, cunvexiiiiu-ulu ; apertiird Irantvertf 

 ijcatd ; peruloi/ia/e nimplici, acuta. 

 The little saw Helix. Shell somewhat deeply umbi- 

 licatcd, very depressed, closely sculptured with rib- 

 like slightly wrinkled stria.-, dirty white, keeled, keel 

 serrated with the stria; : whorls six, slightly convex ; 

 aperture transversely ovate ; lip simple, sharp. 



Benson (Mus. Cuming.) 



//"/; Himalaya. 



The keel olitains its saw-like edge from the overrunning 

 of the raised stria;. 



