COCHLICOPA. 291 



is often reddish-brown or flesh-colour, — a nearly complete 

 peristome being thus formed, the interruption being- caused by 

 the narrow channel at the upper angle of the mouth. L. 0-25. 

 B. 0-1. 



Yar. crystallina, Dupuy. Shell greenish-white and trans- 

 parent, like glass. 



Habitat : Among herbage and on damp moss in woods, 

 but sparingly distributed, in many of the English counties 

 from Northumberland to Devon. I am not aware of its 

 having been found in the eastern counties, Wales, or 

 Ireland. According to Dr. Fleming it inhabits Scotland, 

 but only on the authority of Capt. Laskey, who is said 

 to have found it in Carline Park near Leith. The variety 

 is from Wheeley Castle, Worcestershire (Clark) ; on 

 Mercurialis perennis near Stansted, Kent (Smith) ; Taw- 

 stock Woods, near Barnstaple; and Brockley Combe, 

 Somersetshire (J. G. J.). This species is one of our 

 upper tertiary fossils. It does not appear to have an 

 extensive range abroad — Germany and France being the 

 only countries in which I can find any notice of its 

 occurrence. A variety of it (the Azeca Nouletiana of 

 Dupuy) has been found by Boissy in the Pyrenees ; and 

 the variety crystallina is also recorded as inhabiting the 

 South of France. 



Scarcely anything is known as to the habits of this 

 curious snail. It appears to be gregarious and to love 

 shade and moisture. Mr. Alder justly observes that it 

 " seems to form a link between Bulimus and Clausilia, 

 resembling the former in shape and general appearance, 

 but approaching more nearly to the latter in having the 

 margin completely surrounding the aperture, and also 

 more particularly in having a longitudinal plate on the 

 columella considerably within the aperture, similar in 

 situation and making a slight approach in form to the 



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