THE NON-MARINE MOLLUSCS OF ESSEX. 67
Limnaea pereger, Muller.
A.—River Stort ; (Ingold) : Hatfield Forest ; (E.N., vol.
iv., p. 223) : *Epping Forest ; Chingford ; (C.S.R.,
Kew) : Woodford ; (E.N., vol. iii., p. 39) : River Rod-
ing, Woodford ; (Newstead) : Wanstead ; (Crouch) :
Leigh ; (W.M.W.) : Canning Town ; (K. and W.) :
Ilford; Walthamstow; Docks; Grays; Tilbury; West
Thurrock; (British Museum).
B.—Finchingfield ; (Bailey) : Sible Hedingham ; Halstead ;
(Adams) : Beaumont ; (Sheppard Coll.) : Felstead ;
(French): *Colchester, River Colne ; Wyvenhoe Park—
in almost salt water ; (Laver) : Walton ; (C.S.R.,
Blatch) : Kelvedon ; Copford ; (British Museum) : Cog-
geshall ; (Turner) : Chignal—with a semi-scalariforme
individual ; (Christy) : River Chelmer and Beeleigh
Mill; (E.N., vol. v.. p. 233) ; Broomfield; (E.N., vol.
vii., p. 76) : Chelmsford ; Ingrave ; (W.M.W.) : Cop-
ford; (K. and W.): *Clacton; (British Museum) : Chelms-
ford; (Webb, 5).
C.—Saffron Walden ; (S.W. Museum): Audley End Park;
(C.S.R., Christy): Wrabness; Ramsey; (Sheppard) :
Dovercourt—in a brackish marsh ; (Adams) : Harwich ;
(British Museum).
Limnaea palustris, Muller.
A.—River Stort; (Ingold); Wanstead Park; (Newstead) :
Carswell ; St. Swithin's ; Whips Cross ; (Crouch) :
Canning Town ; (K. and W.) : Ilford ; Walthamstow ;
(British Museum): Docks; (Woodward): Grays; West
Thurrock; (British Museum).
B.—Stebbing Brook, Felstead ; River Chelmer, Felstead—in
flood debris—two shells described as follows :—"In these
the columellar (sic) of the last whorl is widely reflected
and gaping, so that the interior of the shell may be seen
from the anterior end" (E.N., vol. v., p. 181); (French) :
Coggeshall—some 11/2 inches long ; (Adams) : *Colches-
ter ; Stanway ; (Laver) : Broomfield ; (E.N., vol. vii.,
p. 76) : Chelmsford ; (Christy) : Copford ; Clacton ;
(British Museum) : Chelmsford; (Webb, 5).
C.—In a pond, Wind Mill Hill, Saffron Walden, up to 11/4
inches in length ; (Christy) : Saffron Walden ; (S.W.
Museum) ; Harwich ; (British Museum).