I'M) HULL SCIENTIFIC AND FIELD NATURALISTS CLUB. 



List of Abbreviations. 



Roberts, G. 

 Roebuck, W. Denison 

 Taylor, J. W. 

 Nelson & Taylor. 

 Journal of Conchology 

 The Naturalist. 

 Yorkshire Naturalists' 



Union. 

 Monograph. 



Arion ater (Linn). 



Generally distributed throughout the Riding. 



Derwentland. — York district, very abundant (R.M.C). Allerthorpe 

 (Y.N.U. 1893). Wressle, banks of Derwent (G.R.). 



Wolds.— Howsham Woods (Y.N.U. 1889). Kildwick Percy (J.D.B. 

 3rd circular, 1885; Y.N.U. 1885; circular 106). Sledmere (Y.N.U. 

 1891) North Grimston, plentiful (Y.N.U. 1902). Filey (W.C.H. 

 2nd circular, 1883; Y.N.U. 1883; Y.N.U. 1903). Flamborough 

 (F.W.F. circular 116). Danes Dyke (Y.N.U. 1886). Brough 

 (Y.N.U. 1901). 



Holderness. — Driffield, banks of canal, "all five species of Arion" 

 (J.D.B. circular 145). Beverley, generally distributed; abundant 

 in Pighill Lane (J.D.B. 3). Hornsea, common (J.D.B. 2 ; Y.N.U. 

 1881). Hull district, very common (J.D.B. 1). Withernsea (F.W.F. 

 circular 99); on the cliffs (J.D.B. Nat. vol. 17, p. 253). Common 

 in Holderness ; Spurn (T. P.). 

 Yar. albolaieralis Roebuck: — Danes Dyke (Y.N.U. 1886). Flam- 

 borough (F.W.F. circular 116), probably refers to the previous, 

 record. Railway Bridge, Hedon, three specimens, April 1904 (T. P.). 



Yar. brunnea Rbk : — Aldborough (T.P.). 



Arion subfuscus Drap. 



Not included in the Census (J. of C. , vol. 10, pp. 217, &c). 

 Wolds.— Filey (Y.N.U. 1903). 

 Holderness. — Driffield, banks of canal, "all five species of Arion" 



(J.D.B. circular 145). 



Arion intermedins Normand. 



Wolds. — Filey, first ravine south (Y.N.U. 1903). North Grimston, 

 several (Y.N.U: 1902). Sledmere (Y.N.U. 1891). Welton Dale 

 ( Y. N.U. 1901 ). Drewton Dale (T. P. ). North Cave (T. P. ). 



Holderness. — Driffield, banks of canal, "all five species of Arion' 

 (J.D.B. circular 145): fairly common in the district (E.P.B.). 

 Hornsea (Leeds Conch. Soc, Yorkshire Weekly Post, July nth, 

 1903). Withernsea (F.W.F. circular 99). Not uncommon amongst 

 moss or dead leaves in marshy places : Roos Bog ; Bale Wood, 

 Aldborough; Tansterne; Hedon; Kelsey Hill; Spurn (T.P.). 



