hey: mollusca of Derbyshire. 121 



H. virgata. — Confined to one place (as far as I know), near 

 Willington Station, and is probably an importation with 

 ballast when making the line. 



H. caperata. — I have only found this in one place at Amber- 

 gate, although I have searched diligently for it. 



H. ericetorum. — Rather an uncommon shell, although it is 

 plentiful in the adjoining county of Leicester, and within 

 three miles of the border. I have found a few dead shells 

 near Millers-dale, but never a living one ; I have found a 

 few in Dovedale. 



H. rotundata. — One of our commonest shells; the only diffi- 

 culty would be where not to find it. 



H. rupestris. — This small shell is very common everywhere 

 in the Peak district, say from Ambergate to Buxton. 



H. pygmaea. — To be found in the neighbourhood of Monsal- 

 dale and Millers-dale amongst the damp moss on the hill 

 sides. 



H. pulchella. — -Very plentiful in the same localities as H. 

 pygijicea. 



H. lapicida. — A very abundant species, and occurs all over 

 the Peak district. I found a very strong colony at Amber- 

 gate on a sandstone wall — very fine ones and of a very dark 

 colour. 



Bulimus obscurus. — Rather a common species in the Peak 

 district ; about Buxton, Millers-dale, Monsal-dale, and as 

 low down as Ambergate. 



Pupa secale. — Not very common; but I have found it at 

 Millers-dale, Monsal-dale, and near Haddon Hall. 



P. ringens. — I have found a io.-^ near Buxton, which is the 

 only place (as yet) where I find it. 



P. umbilicata. — Very abundant from Ambergate to the Peak 

 of Derbyshire, on old walls (not necessarily limestone) and 

 in the crevices of the limestone rocks. 



P. marginata. — I have found about half-a-dozen on the rocks 

 near Buxton, in company with F. umbilicata. 



