} 
Additions to Lincolnshire Non-Mavine Mollusca. 103 
CLAUSILIA LAMINATA Montagu 
N. 6. Nettleham Pit, 21-9-03. J fF Musham. 
CARYCHIUM MINIMUM Miiller 
S. 13. Skellingthorpe Wood, 20-0-06. J KF Musham. 
LIMNAEA AURICULARIA $ Linné 
S. 13. River Witham, Boultham, 14-11-05. J F Musham. 
LIMNAEA PALUSTRIS Miller 
S. 13. Boultham Dyke, 18-5-06. J F Musham. 
LIMNAEA TRUNCATULA Miiller 
N. {. Folly Dyke, Big Turbary, Belton, L.N.U. Meeting, July, 
1906. CSC. 
PLANORBIS GCRISTA Linné 
—— “var. laevigata Adami 
N. 8. Ponds, Coxey Hills, near Louth, July, 1906. Walter 
Markham. 
PLANORBIS FONTANUS § Lightfoot 
North Delph, Monks Abbey, 31-10-06. J F Musham. 
~PHYSA FONTINALIS § Linné 
S. 13. Hykeham, 28-11-05. J F Musham. 
BYTHINIA TENTACULATA Linné 
*Monst. decollatum Jeff. 
N. 9. Small drain, Saltfleetby-all-Saints, Easter, 1906. CSC. 
BYTHINIA LEACHII Sheppard 
*Numbers of decollated forms of this species were also 
found associated with the last named species, on the 
occasion of the Leeds Conch. Club excursion to the 
district. Easter, 1906. 
_VALVATA PISCINALIS Miiller 
Mr. J. F. Musham informs me he has found this species 
common in the stomachs of eels at Snarford. 
VALVATA CRISTATA Miiller 
N. {. Folly Dyke, Big Turbary, Belton. CSC. I.N.U.,, 
Meeting, July, 1906. 
NERITINA FLUVIATILIS Linné 
— *var. cerina Colbeau 
S. 13. River Witham, Boultham, 17-9-06. J F Musham. 
UNIO PICTORUM Linné 
S. 13. Boultham, 14-11-05. J F Musham. 
UNIO TUMIDUS Retzius 
S. 13. River Witham, Boultham, 14-11-05. J F Musham. 
 ANADONTA CYGNGA Linné 
_—— var. anatina Linné 
S» 3. Boultham, 7-19-05. J # Musham. 
SPHARIUM RIVICOLA Leach 
(Dead), River Bank, Bardney, 27-12-05. J K Musham. 
PISIDIUM AMNICUM Miiller 
S. 13, River Witham, Hykeham, 14-10-06, J F Musham, 
