Our British Snails 51 



on beech and ash trees, and on limestone rocks. 

 Smooth and glossy. 



In the family Stenogyra we have three genera, 

 Azeca, Cochlicopa, and Caecilioides (with also 

 the imported Stenogyra Goodallii, found only 

 in pine-houses). 



Stenogyra {Azeca) tridens is a small chrysalis- 

 shaped, solid but semi-transparent shell, horn- 

 coloured, with 3 denticles. Not rare in moist 

 places. 



Stenogyra {Cochlicopa) luhrica {i.e. slippery). — 

 Very common in moss and under stones or logs. 

 Much like the previous species, but no denticles 

 and fewer whorls, and broader mouth. 



Stenogyra {CcBcilioides) acicula. — If this word 

 is supposed to be Latin it would mean either 

 " like to a blind worm " or '* like to a lettuce " ! 

 CcBcus, however, being Latin for blind, the allusion 

 is no doubt to the fact that this wholly subter- 

 ranean species is eyeless. The only British 

 representative of a large family of carnivorous 

 molluscs. I have found it on Saxon bones when 

 unearthed, and in crevices of limestone under- 

 ground, but it is generally found dead amongst 

 the rejectamenta on the banks of rivers. It 

 is a pretty, glossy white shell, 5 millimetres in 

 height by i in breadth. 



I may notice here two other land shells, al- 

 though they scientifically are grouped amongst 

 the fiuviatile Gasteropoda. 



