MAYKIEI.l) : THE \ON-MARI\F. Mni.T.USCA OF SUFFOLK. 279 



L. truncatula (Miiller). Common by margins of rivers and in 

 stagnant water. 



E. — Blythburgh, Wenhaston (A.S.K.), Claydon, Holbrook, 

 Stutton (Sheppard), Oulton (CM.)., R. Aide (G.T.R.). 



W. — Higham (Sheppard), Icklingham (Skepper), Bury St. 

 Edmunds (A.M.). 



var. elegans Jeff. E. — Holbrook (Sheppard). 



var. albida JefF. E. — Levington (Sheppard), Mendlesham (A.M.). 



L. Stagnalis (L.j. Very common. 



E. — Campsey Ash (A.S.K.), Blaxhall, Farnham, Leiston, The- 

 berton, Little Glemham, Homersfield, Mendham, Eye (G.T. R.). 



W.— Stratford St. .Mary, Tostock, Bury St. Edmunds (G.T.R.), 

 Barton Mere (C.B.). 



*L. glabra (Miiller). "Suffolk" (Jeffreys and Leith in Leach's 

 "MoUusks of Great Britain"). 

 Amphipeplea glutinosa (Miiller). 



*W.— Mildenhall (C.B.). 

 Planorbis corneus (L.). Common in West Suffolk, but not in 

 the east of the county. 



E. — Barnby Broad (CM.), . Ipswich, Redgrave Fen (A.M.). 

 W. — Bures -St. Mary, in the Stour near Dedham (G.T.R.), 

 Icklingham (C.B.), Bury St. Edmunds, Rushford, Hopton (A.M.). 

 P. albus Miiller. 



E. — Blythburgh, Wenhaston (A.S.K.), Tattingstone (CM.), 

 Ipswich, Bentley (A.M.). 



W.— Bury St. Edmunds (A.M.). 

 var. draparnaldi Sheppard. Holbrook (Sheppard). 

 P. crista (L.). In ponds. 



E.— Campsey Ash (A.S.K.), Iken (G.T.R.), Spexhall, Offton, 

 Nettlestead (Sheppard). 



*W.— Walsham-le-Willows, Knettishall, Norton (A.M.). 

 P. carinatus Mullen In rivers. 



E.— Wenhaston (A.S.K.), Blaxhall, Farnham, Leiston (G.T.R.). 

 W.— Stratford St. Mary (G.T.R.). 

 P. umbilicatus Miiller. Very common. 



E.— Campsey Ash, Blythburgh, Wenhaston (A.S.K.),' Blaxhall, 

 Farnham, Leiston, Snape, Iken (G.T.R.), Oulton (CM.), Baylham, 

 Holbrook (Sheppard). 



W. — Higham (Sheppard), Hopton, Bury St. Edmunds, Lackford, 

 Icklingham (A.M.). 



var. rhombea Turton. E. — Bradwell (A.M.). 

 P. vortex (L.). Confined to rivers except in rare instances. 

 E. — Campsey Ash, Blythburgh, W'enhaston (A.S.K. ). 

 W.— Felsham (CB.). 



