W. D. roebuck: LINCOLNSHIRE MOLLUSCA. 26 1 



North Lincolnshire. — Among chalk debris at Claxby, near Alford, one, Septem- 

 ber i6th, 1885 ! (J. E. Mason). Greenfield Wood, Ailby parish, one, June 8th, 

 1887! (]. E. xMason). Well Vale, near Alford, a few, April 14th, 1886 ! 

 (W.D.K.). Claythorpe, one, July 6th, 1887! (J. E. Mason). Grisel-bottom, 

 Biirwell Wood, two! (H. W. Kew, 7, vi, 87). 



South Lincolnshire. — Ancaster villaj^e, one, April 17th, 1886 ! (W.D.R.). 



Pupa marginata Drap. 



Not uncommon in various localities on the coast sandhills, at 



Cleethorpes, Mablethorpe, and Chapel, and also recorded for 



Lincoln. Not yet reported for South Lincolnshire. 



North Lincolnshire —Cleethorpes (J. R. Hardy, September, 1885). Mablethorpe, 

 a few, 1881 (Rev. W. W. Fowler, April, 1886). Mablethorpe, common, with 

 var. edentula (H. W. Kew, 19, viii, 86). Chapel, a few, 19, viii, 86 (J. E. 

 Mason). Lincoln (W. Nelson's collection). Sandhills, Chapel, parish of 

 Mumby Chapel, two, July 5th, 1886 (J. E. Mason). Haugham Pasture, near 

 Louth! (H. W. Kew, 13, v, 87). Swaby Vale, near Alford, one ! (Id.) 



Pupa umbilicata Drap. 



Common in Well Vale, near Alford ; Hubbard's Valley, near 

 Louth ; and at Mablethorpe. Not on record for the southern 

 division. 



North Lincolnshire. — Well Vale, near Alford, numerous, April 14th, 1886 ! 

 (W.D.R.). Well Vale, common on trunks of maples (H. W. Kew, 19, viii,86j. 

 Mablethorpe, common (H. Wallis Kew, 19, viii, 86j. Hubbard's Valley, 

 one! (H. W. Kew, 13, v, 87). 



Pupa umbilicata var. albina Moq. 



North Lincolnshire.— Mablethorpe, 1881, one (Rev. W. W. Fowler, April 1886). 



Pupa umbilicata var. curta Pasc. 



North Lincolnshire. — Grimoldby, near Louth ! (H. W. Kew, 13, v, 87). 



Vertigo edentula (Drap.). 



Recorded for two localities only, both in North Lincolnshire. 



North Lincolnshire. — Broughton Wood, Brigg (T. Rogers, September 1885). 

 Greenfield Wood, parish of Aby-with-Greenheld, June 8th, 1887! (J. E.Mason). 



Vertigo pygmaea (Drap.). 



Recorded for two coast localities only, both in North Lincoln- 

 shire. 



North Lincolnshire. — Mablethorpe, 1881, numerous (W. W. Fowler, April 1886). 

 Sutton-in-the- Marsh, foot of sandhills, land side, edge of pools, one, April 

 16th, 1886 (W.D.R.). 



Balea perversa (L.). 



Sparingly found in two places in the neighbourhood of Alford, 

 where it occurs on ash-trees. 



North Lincolnshire. — Rigsby, several, March 3rd, 1887! (Isabel Mason). Clay- 



thorp e, one, July 6th, 1887 ! (J. E. Mason). 

 Sept.. 1887. 



