LAND AND FRESH WATER MOLLUSCA OF THE EAST RIDING. l6l 



Limnsea palustris (Mull.). 



Derwentland.— York district, " admodum frequens in stagnis circa. 

 Eboracum" (Lister, Hist. Animal. Angliae, p. 139) ; rather well 

 distributed (R.M.C.). Westow (Y.X.U. 1889). Newsholme (J.B.). 

 Cowbridge ; Ousethorpe ; Featherbed Lane (W. Nelson, J. ot C. 5, 

 pp. 262-67). 



Yfolds Filey (Y.N.U. 1903). Flamborough, common but small 



(W.CH, circular 62; F.W.F. circular 116). Pond near Danes 

 Dyke House (Y.N.U. 1886; W.CH. " Flamborough " p. 137). 

 Burlington (J.S.G.) ; fine, millpond (W.CH,; W.CH. circular 62). 

 Kelleythorpe (T.P.). 



Holderness.— Driffield Canal (L. B. Ross and J.D.B. circular 145 ; L. B. 

 Ross, J. of C 4, p. 356). Beverley (J.D.B. 1) ; locally abundant, 

 but by no means a common species here ; Long Lane ; Swinemoor ; 

 Pighill, where it appears to prefer mud to water, and resembles 

 truiicattila in its habits ; Figham ; pond in field beyond Kitchen 

 Lane; Commonbank Nook (J.D.B. 3). Cottingham (J.D.B. 3). 

 Sprine Dyke, Hull (J.D.B. 1). Hornsea (J.D.B. 1) ; ditches and 

 swampy places near the Mere (J.D.B. 2 ; Y.N.U. 1881 ; C. Reid, 

 p. S3). Haltemprice Lane ; ditch parallel to Cottingham Beck ; 

 Sutton ; Lambwath stream and ditches, Marton ; Dunswell ; 

 Kelsey Hill ; Springhead ; Hedon ; not common in East Holderness 

 (T.P). Endyke Lane (J.W.B.). Canal and trout streams, Driffield ; 

 Foston streams ; Hornsea; generally distributed (E. P. B.). 



Van tincta Jeff. :— Newsholme (J.B). 



Var. elonsrata Moq. :— Newsholme (J.B.). Burlington (J.S.G. ). Near 



Hull (W. L. W. Eyre, J. of C 7, p. 87). Sutton ; Railway Bridge, 



Hedon (T. P.). 

 Var. siricta:— Near Hull (W. L. W. Eyre, he tit.). 

 Var. lacunosct Zgl. :— Sutton ; Dunswell (T.P.). 

 Var. minor Taylor :— Railway Bridge, Hedon (T.P.) ; several almost 



as narrow as L. glabra, and one specimen turreted. 

 Var. variegata :— Hedon (as above), with many showing spiral 



banding, April 1904 (T. P.). 

 Var. corva. (Gmel.) :— Driffield (E.P.B.). 

 Subfossil. Bridlington (W.CH., Nat. 12, p. 374). 



Limnsea truncatula (Mull.). 



There are few records for Derwentland ; it is very 

 abundant in the other divisions. 



Derwentland.— York district, common (S.W.N); abundant (R.M.C). 

 Newsholme, White Rails drain (J. Beanland). Wressle, on caddis 

 cases in the Fleetdyke (G.R.). Newport (Wm. Nelson, J. of C 5, 

 pp. 262-67). 



