ae 
Non-Marvine Mollusca of Lincolnshire. 47 
On 22nd August, 1905, a very immature example was found in 
the Mar Dyke, near Saltfieetby Station. 
N. Saltfieetby, All Saints, January, 1894. H WK. (Nat. March, 
1894). Tetney, April, 1902. CS C.and HW K. 
PLANORBIS CORNEUS Linné 
A common species, especially in the Marsh Drains. 
N. {Brige. TB. Divs.1,2,3,4,5, 8,9, 11,12. 
S. *Rejectamenta from between Bracebridge and Lincoln, 
December, 1884. C.T.M. Divs.13, 15, 16. 
——- var. albina Mog-Tand. 
S. *Near Lincoln, September, 1885. J. Hardy. 
PLANORBIS ALBUS Miiller 
A common species, recorded for numerous localities. 
N. (Brigg. TB. Divs. 2,3, 5, 7, 8,9, 
S. *Rejectamenta from between Bracebridge and Lincoln, 
December, 1884. C. T. M. *Crowland Wash, July, 1886. 
T. W. Bell. Grantham Canal, 1902. H P. ; 
PLANORBIS CRISTA Linné (=nautileus L.) 
A very common species, recorded for numerous localities. 
N. {Brigg. TB. Divs. anaay, 8, 9. 
S. Near Lincoln, 24-5-1894. (F WF. Nat. September, 1894.) 
PLANORBIS CARINATUS Miiller 
A common species, especially in the Marsh Drains, recorded 
for numerous localities. 
N. {Brigg. TB. Divs. 1,2, 4, 8,9, 11. 
S. *Rejectamenta from between Bracebridge and Lincoln, 
December, 1884. C T M. *Rejectamenta of dyke at 
Anwick, near Sleaford, 7-3-1887. C T M. Near Lineoln, 
24-5-1894.) Grantham, 1800. R W. Little Ponton, 
12-7-1902. RW. 
PLANORBIS UMBILICATUS Miiller 
A very common species, abundant in the Marsh Drains, 
recorded for numerous localities. 
N. *Louth Canal, 15-4-1886. W DR. Divs.1, 3,4, 8,9, 11, 12. 
S. *Boston, 8-9-1884. WDR. Divs. 13, 14, 15, 16. 
—= var. rhombea Turton 
N. *Sutton-on-Sea, in drift at high-water mark, 4-12-1886. 
B.S. Dodd. 
PLANORBIS VORTEX Linné 
A very common species, abundant in the Marsh Drains, 
recorded for numerous localities. 
N. (Brigg. TB. Divs. 1, 2, 3, 4, 8,9, 11. 
S. *Rejectamenta from between Bracebridge and MLineoln, 
December, 1884. C TM. Divs. 13, 14, 15,16 
PLANORBIS SPIRORBIS Linné 
Not so common as the last species. 
N. {Brigg. TB. Divs.1, 4, 7, 8,9, 11. 
S. *Near Boston, 8-9-1884. W D R. Great Ponton, 31-7-1902. 
WDR. 
PLANORBIS CONTORTUS Linné 
A common species, recorded for numerous localities. 
N. tBrigg. TB. Divs. 1, 2, 3, 4, 8, 9, 10 
S. *Rejectamenta from between Bracebridge and Lincoln, 
December, 1884, CTM, 
