68 THE NON-MARINE MOLLUSCS OF ESSEX.
Limnaea truncatula, Muller.
A.—River Stort ; (Ingold) : River Lea, Chingford ; (C.S.R.,
Scharff) ; Carswell; St. Swithin's ; (Crouch) : Canning
Town; (K. and W.): Ilford; Walthamstow; (British Museum) :
Grays; (Woodward): Tilbury; (British Museum).
B.—River Chelmer, Felstead ; (French) : Banks of the River
Blackwater, Coggeshall; (British Museum) : Colches-
ter ; Stanway; (Laver): Little Tey; (Adams): *Birch;
(Laver Coll.) : Copford ; (British Museum) : Witham ;
(Turner) : Chignal—globose form ; (Christy) : River
Chelmer; (E.N., vol. v., p. 353): Chelmsford; (Christy):
[Felstead ; (French) : ] *Copford ; Clacton ; Witham ;
(British Museum) : Chignal ; (Christy, 3) : Chelmsford ;
(Webb, 5).
C.—Saffron Walden ; (S.W. Museum) : Wrabness; (Sheppard
and Collection); Harwich; (K. and W. after S. P.
Woodward).
Limnaea stagnalis, Linne.
A.—River Stort ; (Ingold): Hatfield Forest; (E.N., vol. iv.,
p. 223) ; Epping Forest ; (Cole) : Walthamstow ;
Chingford; (C.S.R., Kew): Woodford ; (E.N., vol. iii.,
p. 39) ; Whips Cross ; Barking Side ; Wanstead Park ;
(Crouch) : Leytonstone ; (Newstead) : Purfleet—and
white variation ; (Jenkins) : Ilford ; Canning Town ;
(K. and W.) : Walthamstow ; British Museum ; Grays ;
(Woodward after S. V. Wood).
B.—River Colne, Halstead ; (Adams) : Felstead ; (French) :
Little Tey ; (Adams) : Coggeshall; (British Museum) :
Colchester District ; Langenhoe ; (Laver) : Dunmow ;
(Christy) : Chipping Hill, Witham ; (Turner) : Chignal ;
(Christy) : Broomfield—globose form ; Chelmsford ;
(W.M.W.); Copford; Baine; (British Museum) ; Clacton;
(K. and W.).
C.—Saffron Walden ; Wimbish Hall—fine specimens ; (S.W.
Museum) : River Stour; Wormingford—two inches long,
in ponds ; (Laver).
Limnaea glabra, Muller.
A.—Woodford ; (E.N., vol. iii., p. 39) ; St. Swithin's Farm,
Barking Side—one shell ; (Crouch).
B.—*Donyland Wood, Colchester ; (Laver).
[Limnaea glutinosa, Muller.] The specimens in Saffron Walden
Museum were young pereger.—W.M.W.
[Limnaea involuta, Harvey.] The only locality is in Ireland.