THE NON-MARINE MOLLUSCS OF ESSEX. 37
Gams—HELICELLA, Ferussac, 1842.
Helicella virgata, Da Costa.
A.—Paglesham—on clay; (Laver): Barking Creek ; (Crouch):
Canvey Island; (Christy): Southend; (E.N., vol. vi.,
p. 3): Ilford; (K. and W.).
B.—Finchingfield ; (Bailey) : Stebbing ; (French, E.N., vol.
vi., p. 3) : Felstead ; (French) : Little Tey ; (Adams) :
Colchester ; *Walton ; Clacton—on cliffs of London
clay ; (Laver) : *Mersea ; (Cole) ; Chignal Smealey ;
Saling ; Chelmsford—unstriped ; (Christy).
C.—Saffron Walden ; (S.W. Museum).
Helicella ericetorum, Muller.
A.—Bishop's Stortford District : (Ingold) : Farnham and
Elsenham; (Hughes): Hatfield Forest; (E.N., vol. iv.,
p. 222) ; Fyfield—unstriped ; (Christy) : West Thurrock ;
(British Museum).
B.—Dunmow ; (Christy) : Felstead—very local; (French) :
*Stanway; Marks Tey; (Laver): Witham; (Turner):
Chignal; (Christy): [Felstead; (French.)]
C.—Saffron Walden (S.W. Museum).
Helicella caperata, Montagu.
A.—Farnham; (Ingold): Norton Heath, Ongar; (Christy):
Paglesham ; (Laver) : Stifford ; Grays ; (Crouch) : Lea
Valley; (K. and W.): Ilford; Grays; (British Museum).
B.—Finchingfield; (Bailey): Felstead; (French): Walton;
(C.S.R., Whitwell) : *Stanway Green ; Colchester ;
(Laver) : Witham ; Rivenhall; (Turner) : Chelmsford ;
(W.M.W.): Chignal; (Christy): Doddinghurst; (C.S.R.,
Christy): [Felstead; (French):] *†Copford: (W.M.W., in
material given to the Field Club by W. Whitaker, F.R.S.
Mr. Kennard has also made out this species) : *Clacton ;
(Webb 4) ; Witham ; (British Museum) : ‡no specimens
forthcoming from Chignal.
C.—Saffron Walden ; (S.W. Museum) : Wrabness ; (Sheppard
Collection) : Dovercourt ; (Adams).
[Helicella barbara, Linne] (=Bulimus acutus, Muller.)
Helicella cantiana, Montague.
A.—Bishop's Stortford ; (Ingold) : Wanstead ; Barking Side ;
Leytonstone; East Ham; (Crouch): Stanford-le-Hope;
(Cole): Bulphan; (C.S.R., Kew): Leigh; (W.M.W.).