280 JOURNAL OF CONCHOLOGY, VOL. 12, NO. ID, APRII,, I909. 



*P. vorticulus Tioschel. 



E.— One at Redgrave Fen (A.M.). 



W. — Fossil, in a recent deposit at Knettishall. Mr. A. S. Kennard 

 noticed this shell in a sample of peaty soil that I sent to hrm. 

 Altogether more than a dozen specimens have been found in this place. 

 P. spirorbis (F.). Common. 



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

 Blaxhall, Little Glemham, Snape, Leiston> Homersfield, Mendham 

 (G.T.R.), Ipswich (A.M.). 



W.— Sudbury, Bures (G.T.R.), Knettishall (A.M.). 

 P. COntortus (L.). Moderately common. 



E. — Campsey Ash (A.S.K.), Blaxhall in the River Aide between 

 Snape and Langham bridges (G.T.R.), Ipswich (A.M.). 

 W.— Cockfield (C.B.). 

 P. fontanus (Lightfoot). Not common. 

 E. — Campsey Ash, Baylham (Sheppard). 

 Segmentinanitida(Miiller). Rare. W. — Tuddenham (Skepper). 

 Physa fontinalis (L.). Abundant in rivers. 



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

 Leiston, Iken, Newbourne (G.T.R.). 



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

 Aplecta hypnorum (L.). In stagnant water. 

 E.— Saxmundham (G.T.R.), Bradwell (A.M.). 

 W.— Sudbury (King), Tostock (Skepper), Cockfield (C.B.), 

 Mildenhall Fen (A.M.). 



*Paludestrina COnfusa (Frauenfeld). — Through the kindness 

 of Mr. Claude Morley, who directed me to the spot at Oulton Broad 

 where he found this species in the rejectamenta of the Broad, I 

 succeeded in obtaining many living specimens crawling on the mud 

 and under the fallen and decayed reeds. Mr. A. S. Kennard has since 

 found a single shell at Blythburgh, some miles farther south. 



*P. jenkinsi Smith. Seems to occur near the coast from Lowes- 

 toft to Harwich. Abundant at Oulton Broad, in the river Blyth at 

 Walberswick, the Aide at Aldeburgh, and the Orwell at Ipswich, and 

 Orwell Haven. 



var. carinata Smith. With the type at Oulton, Aldeburgh, and 

 Walberswick. All the shells obtained from the Orwell were this form. 

 *P. ventrosa (Mont.). • Common. 



E.— Blythburgh (A.S.K.), Southwold (G.T.R.), Lake Lothing, 

 Thorpe, Aldeburgh, Walberswick, Orford, Ipswich, Woodbridge (A. M.). 

 var. pellucida Jeff. — Lake Lothing (A.M.). 



*P. stagnalis (Basterot). Exceedingly abundant in the estuaries 

 of the Aide, Orwell, and Deben (A.M.), in the river Blyth (A.S.K.). 



