JEFFERY: the MOIXUSCA of WESIERN SUSSEX. 315 



localities are on high and fairly dry ground. The only 

 other locality I can record is the valley of the Ems, 

 quite on the western border of Sussex. Here it occurs 

 at Lordington, Racton and Westbourne, in damp situa- 

 tions by the stream which reaches the sea at Emsworth. 



Helix cantiana. One of our commonest snails, from the 

 Downs to the sea coast. 



H. rufescens. A garden pest, and common in hedgerows. 



H. hispida. Common: less hispid on marshy ground. 



H. virgata. Numerous on the Downs but of small size. Fairly 

 distributed in the lowlands to the sea coast, growing to 

 a good size in suitable localities and in favourable seasons. 



H. caperata. Generally distributed. The variety Gigaxii is 

 occasionally found, and the species generally has a 

 tendency to this form here. 



H. ericetorum. Common on the Downs, generally of small 

 size, but in some few favored spots growing to nearly 

 |-inch diameter. At Up Park for instance it is found 

 of this size, but only, so far as I am aware, on the steep 

 slopes of a roadway cut through the chalk, also at 

 Adsdean Chalk-pit, again on a steep incline, and thirdly 

 on the Downs northeast of Kingly-vale on the slopes of 

 a cut roadway somewhat similar to the Up Park locality, 

 with steep sides but not more than three to three-and-a- 

 half feet deep. 



It is remarkable that by neither of these roadways 

 are any specimens to be found a yard away on the level. 

 This fact much puzzles me. 



H. rotundata. Common and generally distributed. 



H. rupestris. Last summer 1 found this species very plentifully 

 on a wall near Arundel. Only three other localities in 

 Sussex are given, viz. : — Horsham and Keymer Churches 



