136 A HANDBOOK FOR SOUTHPORT. 



diameter ; the upper side slightly convex, very bright, 

 shining, rather transparent, yellowish horn colour. This 

 species is easily recognised, as when the animal is irri- 

 tated by touching it emits a strong odour of garlic. 

 Zonites nitidulus (Dull Snail). Small and very rare. Has been 

 found amongst moss on the hills at the end of " Peter's 

 slack." 

 Zonites nitidus. One of our rarest shells ; has been found in 



Birkdale. 



Zonites purus (Delicate Snail). Very rare ; amongst moss on 

 the Birkdale sandhills. Small, about one-sixth of an inch 

 in diameter, depressed, transparent, yellowish white, rather 

 shining, and slightly wrinkled. 



Helix nemoralis (Girdled Snail). One of our commonest shells, 

 being found everywhere upon the sandhills; at the 

 same time it is the most beautiful. Very variable in the 

 colour and markings, being sometimes white, yellow, pink, 

 reddish, or brown, or marked with five or fewer rich 

 chocolate bands. 



Helix caperata (Black-tipped Snail). Common in Birkdale, 

 particularly on the sandhills between the two roads at 

 the entrance to the Park. 



Helix hispida (Bristly Snail). Sparingly found in the hedges 

 of the fields near the Rectory, also in Birkdale. It is 

 about a quarter of an inch in diameter, five or six whorls, 

 slightly convex, horn coloured, and covered with very 

 fine short bristles. 



Helix pulcJiella (White Snail). Not uncommon upon the sand- 

 hills ; generally and usually among moss. A beautiful 

 little shell, less than one-eighth of an inch in diameter ; 



