()narierly Joutnal of ConcJioIogy. 323 



abundant among stones on the downs, also at the south end 

 of Guernsey. The descent from the type may, however, be 

 clearly traced by specimens of various degrees of thinness. 



Another variety occurs at Herm, of the same texture as 

 the type, but dwarfed. 



Helix nemoralis, Z. Common in all the islands, generally 

 among stones near the sea. 



Var. HORTENSis, Mull, Pleinmont, Ivy Castle. 



Helix hispida, L. Everywhere common. A curious variety 

 occurred at Herm, in which the suture of the last whorl was 

 deeply channelled near the mouth. 



Var. SUBGLOBOSA. Fermain Bay and the woods above. 

 Helix revelata, Michaud. Downs on the S. Coast of Sark and 

 Guernsey, also at the E. of Guernsey, and at Herm, local but 

 abundant in suitable places; always near the sea. The last 

 two localities are, we believe, new. 



Helix Pisana, Miill. Vszon Bay, Guernsey. Abundant and 

 decidedly large. 



Helix virgata, Da Costa. Most abundant on sandy flats to the 

 N. of Guernsey and at Herm. At Sark only on the hill just 

 above the harbour. 



Helix caperata, Mont. Generally distributed ; most common 

 on the downs to the S. of CJuernsey. 



Helix rotundata, ]\TuH. All the islands ; common under very 

 large stones. 



Helix pulchella, MiUI. (juernsey only ; local and rather 

 scarce ; most plentiful in St. John's churchyard ; also in wet 

 ground at Cobo and Vazon Bay. 



BuLiMUS acutus, Midi. In the same localities with Helix virgata 

 and equally abundant. 



