Non-Marine Mollusca of Lincolnshire. Se 
--— var. radiata Colbeau 
N. “Witham drainage, Lincoln, April, 1840. (J. Hardy, sen.) 
Trent, Gainsborough, 19-2-1890. Geo. Roberts. (Nat. 
March, 1890.) 
ANODONTA CYGNAA Linné 
Recorded for several localities. 
N. {Brigg. TB. Divs. 1, 2, 3, 5, 8, 9, 10. 
S. *Rejectamenta from between Bracebridge and Lincoln, 
December, 1884. C TM. Belton Lakeand Syston Ponds, 
1902. F H W. Little Ponton, 12-7-1902. R W. Foss 
Dyke, Lincoln, 24-5-1894. F WF. (Nat. September, 1894.) 
— var. anatina Linné 
N. *Greenfield Wood Ailby, 8-6-1887. JEM. Divs.1, 3, 5, 
8,9, 11, 12. 
S. Grantham Canal, 1902. RW. 
—-— var, zellensis Gmel 
N. *Well Fish-pond, Alford, 14-4-1886. W DR. 
— yar. tdiminuta Clessin 
N. Louth Canal, H WK. (J. W. Taylor, Monograph, Vol. 1. 
Pp. 44.) 
— var. incrassata Sheppard 
N. Louth Canal, Keddington, 1900. CSC. 
— var. radiata Miiller 
N. Louth Canal, Keddington, 1900. CSC. 
SPHARIUM RIVICOLA Leach 
Recorded for a few localities. 
N. {Brigg. TB. River Trent, Gainsborough, 19-2-1890. Geo. 
Roberts. (Nat. March, 1890.) Fossdyke, North and South 
Banks. 1901. EA WP. 
S. “Rejectamenta from between Bracebridge and Lincoln. Decem- 
ber, 1884. CT M. 
SPHARIUM CORNEUM Linné 
A very common species, recorded for numerous localities. 
N. {Brigg. TB. Divs. 1, 2, 3, 4, 7, 8, 9, 10, 11. 
S. Rejectamenta from between Bracebridge and Lincoln, Decem- 
ber, 1884. CTM. Divs. 13, 14, 15, 16. 
SPHARIUM LACUSTRE Miiller 
Recorded for several localities. 
N. (Brigg. TB. Divs. 2, 3, 7, 8, 9. 
— var. ryckholti Normand 
N. Saltfieetby. April, 1902. One specimen. H W K. 
—— var. brochoniana Bourg. 
N. Saltfleetby. HW K. 
As the nomenclature of the genus Pisidium is only provisional 
in the list adopted, and is somewhat confusing, especially the species 
pusillum, fontinale and subtruncatum. It is thought advisable, for the 
present, to record them as identified by Mr. J. W. Taylor. 
PISIDIUM AMNICUM Miiller 
Recorded for few localities. 
N. Saltfleetby. HWkK. Hubbard’s Valley, 1900. CSC. The 
Eau, Withern, 1900. CSC. 
S. “Rejectamenta from between Bracebridge and Lincoln. 
ee 1884. CT M. Witham Banks, Bardney, 21-4-1902, 
