MILNE AND OLDHAM : MOLLUSCA OF BOWDON DISTRICT. 315 



Pisidia — grow, a growth which, in the case of the introduced 

 species, can be proved only to have been reached since their 

 introduction. 



The other locality has now passed away before the needs 

 of improved farming. Behind Ashley Hall there used to be a 

 small copse, with a marsh at the bottom, where fallen trees 

 rotted at their leasure. Here were found Arioii hortensis ; 

 Agrioliinax agtestis, and v. sylvatica, tristis, IcEvis ; Vitrina 

 peUitcida ; Hyalinia ccllaria, aHiaria, and v. viridula, nitidtda, 

 radiahila, piira, crystallina, fulva ; Helix rotimdata, pygi?i(va, 

 aculeata^ hispida v. hispidosa ; Cochlicopa hibrica and v. hyalina ; 

 Succinea clegans ; and Carychium ininijunm, to which may 

 be added Limticea peregra and paliistris. Mr. Hardy's record 

 of Vertigo pygmcea also probably refers to this co])se. As 

 these species were almost all in great abundance, it will be 

 seen that Ashley Hall Wood was a happy hunting ground for the 

 conchologist. 



Some localities in the neighbourhood of Bowdon have 

 been published in lists of the Manchester District. The 

 following have come under our notice : — 

 David Dyson. — Shells of the Manchester District. 185c. 

 John Hardy. — British Terrestrial and Fluviatile MoUusca, with 

 the localities of the Manchester species. [Manchester 

 Scientific Students' Association Report.] 1864. 

 Appendix to above. 1865. 



J. Cosmo Melvill. — MoUusca. [In British Association Hand- 

 book to Manchester.] 1887. 



These will be used, with due notice of the sources, in 

 our list. 



It remains to acknowledge our indebtedness to Mr. W. 

 Denison Roebuck for assistance in naming the varieties of slugs, 

 which he has given most kindly ; and to Messrs. Thomas 

 Rogers, Edward Collier, R. Standen, J. Ray Hardy, and T. 

 Sparkes for additions and suggestions, which will be dis- 

 tinguished by their names or initials. 



