lOO SOPPITT AND CARTER : UPPER AIREDALE MOLLUSCA. 



Var. cincta Tayl. Malham, 1882; Bell Busk (J.W.Taylor); 

 Gordale, one, 1882 (W. D. Roebuck); Airton, 1883; Rilstone, 

 1886. 



Var. flavescens Moq. Malham, 1882 ; Airton (W. Nelson) ; 



Gargrave (J. Whitwam) ; Rilstone, 1886. 

 Var. albinos Moq. Gargrave, 1882 (J. Whitwam). 

 Helix rufescens Penn. Probably the most abundant land-shell 



in the district. More or less scalariform examples are not 



uncommon. 



Var. minor Jeff. Two examples, Malham, 1887. 

 Var. rubens Moq. Common with the type. 

 Var. alba Moq. Common. 



Var. depressa Loc. A flat form occurring commonly at 

 Greengates, also at Saltaire and near Bingley. 

 Helix concinna Jeff. Rare. Saltaire. 



Var. albida Jeff. Buck Wood, Thackley. 

 Helix hispida L. Locally common. Malham, common, 1882 ; 

 Gordale, 1882; Airton, one (W. D. Roebuck); Bingley, 1882; 

 Idle; Saltaire, 1886; occasionally near Bingley; Frizinghall, 

 common, 1887. 



Var. subrufa Moq. Malham, 1883 (Roebuck and Butterell). 

 Var. depilata Aid. Bingley ; near Esholt ; near Calverley. 

 Var. albida Jeff. Buck Wood, Thackley. 

 Helix sericea Miill. Common, and in some places abundant. 



Banks of canal from Bingley to Calverley in profusion; Malham, 



September 1883 (W. D. Roebuck); Gennet's Cave, 1887; 



Skipton (R. C. Middleton, M.A.). 

 Helix fusca Mont. Rare and local. Several examples from a 



bog in Shipley Glen, 1887. 

 Helix virgata DaCosta. Very local. Common in a pasture at 



Morton Banks, near Bingley, June 1884; in great profusion in 



a short hilly pasture at Cottingley, near Bingley, since 1882; a 



variety approaching lutescens abundant with the type. 

 Helix caperata Mont. Common and generally distributed. 



Under dead leaves, Bingley, 1882 (J. A. and E..P. P. Butterfield); 



cross-roads near Ingrow; Gilstead, Heaton, Saltaire, Fagley, 



Apperley, Calverley. 

 Helix ericetorum Miill. Local and confined to the limestone 



district. Malham, 1873 (J. W. Taylor), 1877 (W. Nelson); 



Airton (W. Nelson); upper end of Gordale Scar, 1887. 



Naturalist, 



