LAND AND FRESH WATER MOLLUSCA OF THE EAST RIDING. 1 47 



Holderness. — Driffield, banks of canal, abundant (L. B. Ross and J.B.D. 

 circular 145). Auburn (W.C.H. Nat. 12, p. 374). Hornsea (J.D.B. 1) ; 

 monochrome variety approaching var. carinata in form plentiful 

 near sea (J.D.B. 2) ; cliff and hedgerows near the sea, abundant 

 (J.D.B. 2) ; roads to cliffs (F.W.F., Fretwell's Guide and circular 150). 

 Withernsea (F.W.F. circular 99). Spurn (3rd circular, 1884); "Not 

 observed" (Y.N.U. 1884); common (T.P.) ; a few (Y.N.U. 1904). 

 Anlaby Road and Spring Head Road, Hull (J.D.B. 1). Very common 

 along the coast and frequent inland ; Paull ; Patrington ; Sandlemere ; 

 Aldborough, &c. (T.P). In great profusion ; at Nafferton the road- 

 side is alive with it (E.P.B.). West Dock Reservation, Hull 

 (J.W.B.). 



Var. lineata Olivi : — Withernsea (F.W.F. circular 99). Flamborough. 

 (F.W.F. circular 116). S led mere ; Hornsea; Atwick ; Paull; 

 common (T.P.). 



Var. nigrescms Grat. : — Spurn (F.W.F. circular 140). = Kilnsea Warren 

 (T.P. Trans. I. 99; Taylor Mon. i, p. 94), Form approaching 

 nigrescens, Barmston, Aug. igoi. (T.P.). 



Var. alba Taylor. — Skipsea, on the cliffs south of the lacustrine deposit ; 

 sandhills north of Barmston (T.P.). A white form with a dark 

 peristome is common with the type (T.P.). 



Var. hyalozona Taylor : — In great abundance on the cliffs between 

 Hornsea and Skipsea (F.W.F., Fretwell's Guide and circular 150) ; 

 should be locality given above (T.P. Trans. I. 100). Barmston (T.P.). 



Buliminus obscurus (Mull.). 



This species is practically confined to the central division ; 

 the occurrence of a dead specimen at Welwick in the extreme 

 south-east is inexplicable. 



Derwentland. — Two along the Dunnington Road (R.M.C.). 



Wolds.— Filey, cliffs (W.C.H. 2nd circular 1883). Speeton (J.S.G. ; 

 W.C.H. ; W.C.H. circular 62 and " Flamborongh " p. 136). 

 Flamborough (W.C.H. circular 62). Lowthorpe (Y.N.U. 1890). 

 Sledmere (Y.N.U. 1891). North Grimston, a few (Y N.U. 1902). 

 Kildwick Percy (Y.N.U. 1885; circular 106). Brough and Welton 

 (3rd circular 1878 ; Goole Sc. Soc, Nat. 2, p. 171 ; J.D.B. circular 

 69; F.W.F. circular 157). Brantinghamthorpe (Y.N.U. 1901). 

 Ferriby, H umber bank (J.D.B. circular 69). Cottingham ; Drewton 

 Dale (J.W.B.). Scarborough Road, Driffield; near Middleton Ings ; 

 Tibthorpe ; York Dale (E.P.B.). 



Holderness. — Driffield, near canal (L. B. Ross, circular 145 ; L. B. Ross 

 J. of C. 4, p. 306) ; Wansford Road (E.P.B.). Drift, Beverley Beck 

 (J.D.B. 3). Welwick, one dead shell, (T.P. Trans. I. 99). 



Pupa anglica (Fer.). 



Is abundant on the cliffs in the North Riding and extends 

 southward as far as the cliffs are favourable ; it has not 

 been found on the clay cliffs of Holderness. 



