SOPPITT AND CARTER: UPPER AIREDALE MOLLUSCA. lOI 



Helix rotundata Miill. Abundant throughout the district. 

 Var. turtoni Flem. Calverley, 1886. 

 Var. alba Moq. Fagley woods, 1887. 

 Helix rupestris Drap. Abundant, but confined to the limestone. 

 Kirby Malham, 1877 (W. Nelson) ; Cracoe, 1881 (T. W. Bell) ; 

 Malham, 1882 and 1887 ; Airton, 1882 (W. D. Roebuck); near 

 Gargrave, 1883 ; Skipton, 1883. 



Helix pygmaea Drap, Not uncommon in a few localities. 



Chellow Dean, near Bradford, 1883 ; amongst dead leaves, 



Shipley Glen, 1887: Fagley Wood, 1887. 

 Helix pulchella Miill. Not common. Apperley Bridge 1878 



(W. Nelson); Calverley, dead examples, 1882 (W. Nelson). 

 Var. costata Miill. Commoner than the type. Canal bank 



between Apperley and Calverley; Idle; Saltaire; Seven Arches, 



near Bingley, all in 1887. 

 Helix lapicida L. Confined to the limestone, where it is not 



uncommon. Near Gordale Scar, 1877 (W.Nelson); Malham, 



1882; Airton, 1884; Kirby Malham, 1887; Rilstone, 1886. 

 Var. nigrescens Taylor. Malham, 1883. 

 Bulimus obscurus Miill. Generally distributed, and in some 



places common. Gordale, at 1,000 ft., 1883; Airton, 1883; 



Bingley, Dowley Gap, Nab Wood, Saltaire, Idle, Thackley, 



Apperley. 



Pupa secale Drap. Apparently rare, but abundant about Settle, 

 in Ribblesdale, only a few miles outside our area, and on the 

 same formation as the upper portion of Airedale. Malham, 1871 

 (H. Shaw). 



Pupa ringens Jeff. Very local and not uncommon. Boggy ground, 

 upper end of Shipley Glen, 1882 (W. Nelson). Taken every 

 year since. 

 Var. pallida Jeff. Occurs with the type. 



Pupa umbilicata Drap. Abundant on limestone, but local on 

 the millstone grit. Kirby Malham, 1877 (W. Nelson); Malham, 

 1882 ; Gordale, 1887 ; near Skipton, 1877 (R. Scharff) ; Harden 

 near Bingley, 1875 (W. Nelson); Buck Wood, Thackley, 1886; 

 Esholt, common, 1887 (A. Hartley); near Keighley; Idle, 1887. 

 Var. curta Westerl. Between Bingley and Harden. 



Pupa marg"inata Drap, Rare. Limestone rocks, Malham, 1882. 



Vertigo antivertigo Drap, Very local. Bog in Shipley Cilen, 

 1882 (W. Nelson), and found commonly up to the present time 

 in the same locality. 



April 1888. 



