Roebuck : Conchological Notes, Wensleydale. 85 



[5. arhmtorum Y2iY. fiavescens, Moq. Tand. Worton, 1877 — H. 

 Crowther,] 



\^H. arbustoruniYd^v. alpestiis, Ziegl. Worton, 1877 — H. Crowlher.] 



H, rufescens, Penn. Abundant in Whitfield and Mill Gills, at 

 Castle Bolton, Aysgarth Force, near Wenslty, and on the waste 

 ground at Redmire ; occurred also on the top of the Scarth Nick, and 

 in the ground floor chambers of Bolton Castle ; and dead specimens 

 in the horse-trough at Jerveaulx Abbey. [Birk Rigg, and Askrigg, 

 1877— H. Crowther; East Witton, 1877— W. Nelson • and Hard- 

 raw Scar, 1879— R. Scharff.] 



Helix Impida^ L. Abundant at Mill Gill , Thornton Rust, Leyburn 

 Shawl, Leas House, Aysgarth Force, and Aysgarth Bridge ; occurred 

 also at Worton Pasture, near Bainbridge, and near the summit of one 

 of the towers of Bolton Castle ; and dead ones in the trough at 

 Jerveaulx. [Birk Rigg, 1877 — H. Crowther.] 



H. sericea, Drap. Occurred at Mill Gill and Whitfield Gill. [Birk 

 Rigg, 1877— H Crowther; and Hardraw Scar, 1879— R. Scharff.] 



[^H. caperata, Mont. Middleham, September, 1877 — W. Nelson.] 



Ff. ericelorum, Miill. A few specimens at the old limekiln, near 

 Aysgarth Bridge. [Middleham, 1877 — W. Nelson ] 



H. rotuudata, Miill. Was very common wherever we collected ; at 

 Whitfield and Mill Gills, at Leas House, at Thornton Rust, near 

 Weusley, at Middleham Castle, near Redmire Station, on Leyburn 

 Shawl, at Castle Bolton, and in the ground floors of Bolton Castle. 



[Hardraw Scar, 1877 — W. Nelson; Jerveaulx Abbey, 1877 — 

 J. W. Taylor; and Aysgarth, 1882— J. A. Douglas.] 



H. rupestris, Stud. A montane or subalpine species, very abundant 

 on all the limestone walls and " scars," as at Cubeck, Thornton Rust, 

 Low Gyll, near Aysgarth, Wensley, Leyburn Shawl, top of Scarth 

 -Nick, and Castle Banks, near Bolton. 



[Carperley, 1877— H. Crowther ; Cotter Force, 1877— W. Nelson ; 

 Aysgarth, 1882— J. A. Douglas.] 



\H. pulcJiella, Miill., var. costata, Miill. Aysgarth, 1877 — W. 

 Nelson.] 



//. lapicida, L. Common on walls along the roadsides below Scarth 

 Nick and at Castle Banks, near Bolton ; occurred also at the lime- 

 kiln at Aysgarth Bridge, and a dead shell on the top scar at Scarth 

 Nick. 



[Birk Rigg, 1877— H. Crowther; Jerveaulx Abbey, 1877— J. W. 

 Taylor.] 



