72 



The Naturalist. 



S. putris var. vitrea. Banks of Barmston Drain. 

 Yitrina pellucida. Generally distributed. 

 Zonites cellarius. Common ; fine at Hessle. 

 Z. alliarius. Hessle, Skidby, Eisby. 



Z. nitidulus. Alnaby Road, Hessle, Welton, Keyingham. 



Z. purus. Hessle, Skidby, Welton, Withernsea. 



Z. radiatulus. Banks of Barmston Drain. 



Z. nitidus. Banks of Barmston Drain ; Hornsea. 



Z. crystallinus. Pretty generally distributed. 



Z. fulyus. "Welton, Skidby, Banks of Barmston Drain. 



Helix aspersa. Common. 



H. nemoralis. Very common, shell straw colour, with white bands, 

 at B rough. 



H. nemoralis, var. hortensis. Skidby, Beverley. 

 H. nemoralis, var. hybrida. Beverley Road, Anlaby Road, Spring 

 head. 



H. arbustorum. Hessle, Beverley, Skidby, Brough. 



H. arbustorum, var. flavescens. Near Brough. 



H. cantiana. Common. 



H. hispiida. Veiy common. 



H. hispida, var. albida. Banks of Spring Dyke. 



H. hispida, var. subrufa. Keyingham. 



H. virgata. Hessle, Anlaby Road, Welton Road to Springhead, 

 Hornsea. 



H. caperata. Hessle, Skidby, Welton, Keyingham. 



H. caperata, var. ornata, Picard. Welton Dale. 



H. ericetorum. Skidby, Keyingham very plentiful, Welton, 



H. rotundata. Hessle, Skidby, Risby. 



H. rotundata, var. alba. Hessle. 



H. pulchella. Hessle, Beverley, Skidby, Welton. 



H. pulchella, var. costata. Skidby, Welton. 



Bulimus obscurus. Hessle, Welton. 



Pupa umbilicata. Hessle, Risby. 



P. marginata. Road to Springhead, on chalk laid to support 



sleepers ; wall near Welton. 

 C. rugosa. Hessle, Welton, Skidby. 

 C. laminata. Skidby. 

 C. lubrica. Common. 



Achatina acicula. Dead shells at Hessle, Welton and Skidby, scarce. 

 Carychium minimum. Common in suitable localities ; very abundant 

 at Skidby. 



