Fitzgerald: shells of harrogate and district. 27 



Z. nitidulus var. nitens (Mich). — Occurs sparingly at 

 Knaresborough and Birstwith. 



Z. purus (Alder). — Local and by no means numerous. Birk 

 Crag ; Knaresborough ; Ripley ; and Nidd Bridge. Birst- 

 with in limited numbers (F.T.W.). 



Z. purus var. margaritacea JefF. — Mr. Walker and I have 

 found this on a bank at Nidd Bridge. 



Z. radiatulus (Alder). — Very local and not numerous. Were 

 found Ripley (F.R.F. and F.T.W.). Birstwith (F.T.W.) 

 and Hartwith (F.T.W.). 



Z. nitidus (Mull.). — Very local, occuring in damp situations, 

 such as the banks of streams, etc. Birk Crag and Ripley 

 (F.T.W. and F.R.F.). 



Z. excavatus (Bean). — Local and very rare. I obtained seven 

 specimens in Ripley Wood amongst dead leaves. 



Z. crystallinus (Mlill.). — Fairly common and generally dis- 

 tributed throughout the district in suitable localities. Birk 

 Crag; Harrogate; Ripley; Knaresborough; and Copgrove 

 Woods ; also very common near Birstwith (F.T.W.); and 

 marshy field near Darley (F.T.W.) 



Z. fulvus (Mull). — Generally distributed, but not so common as 

 the last named. Found in damp Beech wood under decayed 

 leaves, at Birstwith (F.T.W.). I have found it under similar 

 conditions at Ripley, and also obtained several specimens 

 on garden wall under moss near Burnt Bridge. 



Helix aculeata (MiilL). — Rare, only found in two localities, 

 Birk Crag and near Ripley (F.R.F. and F.T.W.). 



Helix aspersa (Mull). — Local, being confined to the lime- 

 stone formations. I have found single specimens off the 

 limestone but they are rare. At Knaresborough there is 

 a very large colony of this species along with H. arbustorum 

 and H. hortensis ; this little patch of ground is exceedingly 

 rich in its number of species of MoUusca. I have also 

 obtained it at Ribston ; Spofforth ; and AUerton. Dead 

 specimens at Nidd Bridge ; a few in gardens at Harrogate 



