314 JKFFERY: THE MOLLUSCA OF WESTERN SUSSEX. 



Zonites crystallinus. Fairly common. 



Z. fulvus. Not so common as the last but often found in 

 company with it. 



Helix aculeata. Not numerous and requires a lot of finding. 



H. pomatia though plentiful in Surrey has not been found in 

 Sussex, but dead shells have been discovered not far 

 from Petersfield (Zoologist, 1878). 



H. aspersa. Numerous and generally distributed; var. grisea 

 occurs sparingly near the Downs. 



H. nemoralis. Whether this species be distinct from H. 

 hortensis or not, they are not as a rule found in the 

 same localities about here. The so called black-mouth, 

 nemoralis, occurs on the Downs amongst furze and 

 juniper bushes and long grass, also in plantations on the 

 chalk and gravel, and is a larger and stouter shell than 

 hortensis. The latter is principally found in hedgerows 

 in the level country and most commonly by roadsides, 

 generally amongst nettles, on which it feeds greedily. 

 I have occasionally found it ascending beech trees, but 

 it is not generally in such cases mixed with the larger 

 shell, nemoralis. Black-lipped specimens of the type 

 hortensis have occurred to me in one locality, a roadside 

 hedge about a mile below Oakwood {nemoralis is found 

 in Oakwood), and it seems possible that specimens of 

 neinoralis may have been carried down to this spot by 

 floods (as there is, after heavy rains, a great flow of water 

 from the wood by this place) and have inter-bred with 

 the white-mouths. These black-lips are confined to the 

 pure yellow variety without stripes. 



H. arbustorum. A very local species: occurs at Harting, and 

 I have found it on both eastern and western sides of 

 Pulborough; also at Cocking near Midhurst. These 



J.C., iii., April, 1882 



