THE MOLLUSCA OF KENT, SURREY AND MIDDLESEX. 299 
P. nautileus.—Near Sevenoaks ; Ealing ; rejectamenta of River 
Stour at Richborough (S. C. C.); Mitcham Common (M‘Kean). 
Var. crista.—Near Sevenoaks, Acton, and other localities. 
P. albus.—Rejectamenta of River Stour at Richborough; St. 
Mary Cray ; near Dorking; Ealing. 
[Var. Draparnaldi.—River Thames near Reading (W. Holland).] 
P. parvus (= P. glaber).—Surrey, rejectamenta of Thames at 
Kew; Middlesex, in a private fishpond at Tottenham (C. Ashford); 
near Sevenoaks (Smith); Richmond (E. H. Rowe). 
P. spirorbis.— Minster (S.C. C.); Beckenham; Bedford Park ; 
Ealing; Surrey (M‘Kean). 
Var. albida.—Bedfork Park (D. B. C.). 
[Var. ecarinata.—Essex (Laver fide Rimmer). ] 
P. vortex.—Generally abundant. Canterbury (Miss L. Fenn); 
St. Mary Cray; Kew; Richmond Park (R. A. Freeman); Acton 
Green; Perivale. 
P. carinatus.—Somewhat local. Rejectamenta of River Stour 
at Richborough ; Crayford; Kew; Perivale. 
Var. disciformis.—Guildford ; Kew; Bushy Park (F. Fenn). 
P. complanatus.—Common. Canterbury (Miss L. Fenn); St. 
Mary Cray; Kew; Guildford; Fulham. 
Var. rhombea.—Stratford (Loydell and Rowe); Erith (Leslie). 
Var. albida.—Eltham (Choules). Monst. sinistrorsum, Wye 
(Miss Hele). [Monst. terebrum, W. Sussex (Jeffery). | 
P. corneus—Common in Middlesex and East Kent, but 
otherwise somewhat rare. Minster; Canterbury (Miss L. Fenn; 
New Cross; Guildford; Kew; Ealing. 
Var. albinus.—Minster; Kew; Fulham (Loydell and Rowe) ; 
Kingswood (McKean). 
P. contortus.—Rejectamenta of River Stour at Richborough ; 
Mottingham ; Kew; Guildford ; Acton Green ; Ealing; Perivale. 
Var. albida, Putney (Loydell and Rowe). 
Physa hypnorum.—Bickley ; Acton, scarce, usually found in 
ditches; Surrey (M‘Kean). 
P. acuta.— Tank in Kew Gardens. 
P. fontinalis.— Herne Bay; St. Mary Cray; Richmond Park 
(R. A. Freeman); Perivale ; Kew. 
Var. albina.— Herne Bay; near London (Taylor). 
[Var. acuta has been found in East Sussex.] 
Limnea glutinosa.—Rare. St. Nicholas Marsh; Minster 
