Non-Marine Mollusca of Lincolnshive. 45 
CLAUSILIA BIDENTATA Strom. 
A very common species, recorded for numerous localities. 
N. {Brigg, TB. Divs. 2,3, 5, 7, 8, 9, 10, 11. 
S. Grantham, 1900. RW. Divs. 15, 16. 
var. gracilior Jeffreys 
N. Cadney, 5-6-1902. In Freshwater Alluvium. EA W P. 
var. tumidula Jeffreys 
S. *Uflington, September, 1885. EC. 
var. everetti Miller 
N. Hubbard’s Valley, 1900. CSC. Claxby Wood, near Market 
Rasen, 17-5-1905. SA. 
CLAUSILIA ROLPHII Leach in Turton 
This very interesting species has been recorded for seven 
localities. 
N. *“Haugham Pasture, 13-5-1887. HWkK. *Maltby Wood (Id.) 
*Grisel Bottom, Burwell Wood, 7-6-1887. HW kK. Well 
Vale, Alford. 12-6-1890. JBD. (WDR., Nat. July, 1890.) 
Tathwell, in a chalk pit near Kenwick Bar, two specimens, 
11-5-1902. CSC. Claxby Wood, near Market Rasen, 
17-5-1905. One slightly damaged specimen. S A. 
S. Grantham, Ropsley Rise, 27-12-1902. RW. 
SUCCINEA PUTRIS Linné 
Not uncommon, recorded for several localities. 
N. {Brigg, TB. Divs.1, 3, 4,5, 8, 10. 
S. Grantham, 1900. RW. Great Ponton, 31-7-:1902. RW. 
SUCCINEA ELEGANS Risso 
Apparently commoner than the other species. 
N. {Brigg, T B. Divs. 2, 3. 4,5, 7,8,9, 10, 11. 
S. Grantham. Canal, 1902. HP. 
CARYCHIUM MINIMUM Miiller 
Very abundant, probably our commonest species, recorded 
for numerous localities. 
N. {Brigg. TB. Divs. 2, 3,4, 7, 8, 9,10, 11. 
Ss. bel an (E. J. Lowe, Conchology of Notts. 1853.) Divs. 
5. 
PHYTIA MYOSOTIS Drap. 
As yet this species is only represented by a variety. It is 
recorded by Thos. Ball, but is one of the species marked as 
not found within the 14 mile radius. 
——— var. denticulata Montagu 
N. Tetney Haven, 17-4-1902. H WK. and CSC. Humberstone 
Fitties and Grainthorpe Haven, 1904. CSC. 
ANCYLUS FLUVATILIS Miiller 
A common species, though recorded for a few localities only. 
N. *Stream, Hubbard’s Valley, April, 1886, and Hallington Beck, 
near Louth, 13-5-1887. HWkK. St. Helen’s Spring and the 
Stream, Louth, 1900. CSC. The Bain, Donington-on-Bain, 
1902. CSC. The Eau, Withern, 1900. CSC. 
S. Grantham, 6-1902. RW. 
ACROLOXUS LACUSTRIS Linné 
Recorded for several localities. 
N. *Pond at Ailby, near Alford, 14-4-1886. WDR. Rigsby. J BD. 
(GK. Gude Journ. of Conch. April, 1892.) Woodhall Spa, 
7-8-1893. (F WF., Nat., October 1893.) Brigg, 3-6-1893. 
(F W F., Nat., August, 1895.) Ancholme Drift, Cadney, 1900. 
EAWP. The Blow Wells, Tetney, 17-7-1902. GK. Gude 
andCSC. Croxby Pond, 28-8-1902. CSC. 
S. Fossdyke, Lincoln, 24-5-1894. (F W F. Nat. Sent. 1894.) 
Banks of Witham near Bardney, 21-4-1902. y 
