W. D. ROEBUCK : LINCOLNSHIRE MOLLUSCA. 



Helix arbustorum var. alpestris Ziegl. 

 This variety is on record as found ' on the banks of the Witham ' 

 (J. T. Lightwood in Nat. Hist. Notes, July 1882, s.s. ii, 96), but 

 which bank is not stated, thus inducing uncertainty as to which 

 division of Lincohishire the record apphes. 



Helix cantiana Mont. 

 Only recorded for two localities in North and one in South 

 Lincolnshire. The latter instance is interesting enough to be repeated 

 in the words of the original record. Mr. John Hawkins wrote in 

 'The Field' of January 24th, 1875, as follows : — 'Two years since, 

 when taking a friend to inspect the Roman camp at Honington, while 

 searching for shards of old pottery, I found Helix cantiana. As it 

 was in the winter season, only dead shells were procurable. Upon 

 my next visit I was fortunate enough to discover two or three live 

 specimens. I could hardly believe at first that the Kent snail should 

 occur in Lincolnshire, and was inclined to attribute the finding it to 

 any cause but the true one. However, descending into the valley, 

 and hunting in a dyke for some geological specimens among the 

 stony debris, I found a whole colony of these Helices, and on com- 

 paring them with specimens brought from the Undercliff, Isle of 

 Wight, I found them quite the equals of these in every respect. 

 Since that time I have procured them on the line of the old Roman 

 road which intersects our heath district, and there is no doubt that 

 they occur all along the stony district of Lincolnshire.' Not having 

 access to ' The Field ' of that date, I have copied the above extract 

 from Harting's ' Rambles,' p. 79. 



North Lincolnshire. — Near Scotton Common, J. Hebden (specimens in coll. 

 W. Nelson). Lincoln, numerous, by roadside, three miles from the city, 

 Rev. A. G. Musson (C. T. Musson). In a lane near Lincoln, several, April 

 1882 (J. T. Lightwood in Nat. Hist. Notes, July 18S2, s.s., ii, 96). 



South Lincolnshire. — Honington (see extract given above). 



Helix rufescens Penn. 

 Common where it occurs. It is on record for the neighbour- 

 hoods of Louth, Alford, Caistor, and Market Rasen, but not for any 

 South Lincolnshire station. 



North Lincolnshire. — The Sycamores, Alford, September 9th, 1885 fj. E. Mason^. 

 Canal-side, Louth, one, April 15th, 1886 (W.D.R.). The Park, Bilsby, near 

 Alford, a few. May 5th, 1886 (J. E. Mason). Claythorpe, one, July 6th, 1887 '• 

 (J. E. Mason). Sloothby, near Alford. a few, August 4th. 1886 "(J. E. Mason). 

 Caistor, several, October 6th, 1883 (W. E. Clarke). Hubbard's Valley, near 

 Louth, two! (H. W. Kew, 13, v, 87.) Glentham, near Market Rasen, 

 August 1879 (C. H. Bothamley). Welton Vale near Louth ! (H. W. Kew, 

 13, V, 87). 



Helix concinna Jeff 

 Not uncommon, and found in various parts of the country 

 adjoining Alford, and at Donington-on-Bain. Not noted for the 

 Southern division. 



Sept. 1887. s 



