112 OLDHAM : LAND AND FRESHWATER MOLLUSCA OF CHESHIRE. 



species, and to Mr. G. Sheriff Tye for help in naming the varieties 

 of Unio and A no don ta. 



The nomenclature and arrangement I have adopted are, with 

 a few slight modifications, those of the Conchological Society's List 

 of 1892. 



GASTROPODA. 



Fam. ARIONIDAi. 



Arion ater (L.). Universally distributed and plentiful. I have 



found this slug crawling on ling at an altitude of over 1,700 ft., 

 on the hills near Macclesfield, and in Longdendale. 



Arion ater v. brunnea Rbk. Not uncommon. Birkenhead (W.J.F.). 



Disley (K.H.J.). Sale, Northenden, Ringway, Rostherne (Milne 

 and Oldham). Higher Peover, Marple, Romiley, Strines, Whaley 

 Bridge. 



Arion ater v. plumbea Rbk. Marple, Romiley, Whaley Bridge. 



Arion ater v. succinea (Miill). One specimen, Ringway (Milne 



and Oldham). 

 Arion ater v. pallescens Moq. Plentiful in the neighbourhood 



of Marple, Romiley and Woodley. 



Arion subfuscus Drap. Not uncommon. Heatley (L.E.A.). 



Marston near Northwich (J.G.M.). Bowdon, Sale, Northenden, 

 Ringway (Milne and Oldham). Marple, Romiley, Compstall. 



Arion intermedins Norm. = A. minimus Sim roth. Generally 



distributed and common. Ringway, Rostherne, Northenden, 

 Baguley (Milne and Oldham). Heswall, Kingsley near Frods- 

 ham ; Bickley near Malpas ; Sale, Ashley, Strines, Pickmere, 

 Marple, Romiley, Whaley Bridge. 



Arion hortensis Fer. Common and universally distributed. 



Arion hortensis v. stlbfusca C. Pfr. Bollington near Bowdon : 



Sale (Milne and Oldham). 



Arion circumscriptus Johnst. Probably generally distributed 



Bowdon, Sale, Northenden, Rostherne (Milne and Oldham). 

 Chester (J.B.T.). Marston near Northsvich (J.G.M.). Marple, 

 Romiley, Strines, Frodsham, Chelford, Marbury, Bollington 

 near Macclesfield. 



Arion circumscriptus v. subfusca Rbk. One in a lane at 



Carrington (Milne and Oldham). 



Fam. LIMACID.K. 



Amalia gagates (Drap.). The rare type form twice — once at 



Bowdon and once at Sale (Milne and Oldham . 



>in.tunili>t» 



