126 HKY : MOLLUSCA OF DERBYSHIRE. 



Z. purus. — I have taken this at Millers-dale, Cromford, Amber- 

 gate, Little Eaton, &c. 

 Z. radiatulus. — I have (as yet) only found this in a little cop- 

 pice near the limekiln at Ambergate. 

 Z. nitidus. — To be met with throughout the district, in xAmber- 



gate woods particularly. 

 Z. excavatus. — This I have found at Millers-dale, but I am 



not certain where else. 

 Z. crystallinus. — I think we may call this fairly common, as 



I have taken it under damp leaves and amongst moss 



throughout the district. 

 Z. fulvus. — ^This I have taken at Cromford, Ambergate, 



Weston, &c. 

 Helix acuieata. — I think this will turn out to be a rather 



common shell, seeing that I have turned it up in four 



difTerent places ; Matlock, Cromford, Ambergate, and 



Etwall. 

 H. aspersa. — Not very common in the district; I have only 



found a few in the direction of Littleover. 

 H. nemoralis. — Pretty common, and occurs all over the 



district. 

 H. hortensis. — Like H. nenioralis, to be met with throughout 



the district. 

 H. arbustorum. — Throughout the district. 

 H. rufescens. — Not a very common shell, although it occurs 



in profusion near Belper in an old quarry, the only place 



where I have met with it. 

 H. concinna. — This species, although such a near relation to 



the preceding one, is very abundant throughout the whole 



district. 

 H. hispida. — Pretty fairly distributed; I have met with it at 



Willington, Breedon, Melbourn, Weston, Derby, Belper, 



Ambergate, Cromford, Millers-dale, &c. 

 H. sericea. — Not very common, but rather local; it occurs at 



Ambergate, Little Eaton, Weston, &c. 



J.C. vi., July, iSSo. 



