THE NON-MARINE MOLLUSCS OF ESSEX.
45
B.- [Felstead ; (French)]: * Copford ; Witham; (British
Museum): Shalford; (W.M.W.): *Chignal: (Christy, 3).
C.—By the River Stour ; Wrabness ; (Sheppard and Coll.) :
Harwich ; (K. and W.)
Vertigo substriata, Jeffreys.
A.—High Beach, Loughton; (C.S.R., Kew): St. Swithin's
Farm, Barking Side—2 specimens ; (Crouch) : * Warley
—fairly abundant; (W.M.W.) : Crossness: [Woodward):
Grays; (Woodward after A. Tylor).
B.—*Felstead: (French): *Copford: Witham: (British Museum):
Shalford: (W.M.W.) : * Chignal; (Christy, 3.)
Vertigo pygmaea, Draparnaud.
A.—Farnham ; (Ingold) : St. Swithin's Farm, Barking Side ;
(Crouch): Leigh; (W.M.W.): Walthamstow; (British
Museum).
B.—Chelmsford ; *Ingrave; (W.M.W.): *Felstead; (French):
*Copford: (British Museum): *Chignal; (Christy, 3) : Rox-
well; (R. Christy).
[Vertigo alpestris, Alder.]
Vertigo moulinsiana, Dupuy.
A.—*Roydon ; (Laver Coll.).
B.—*Copford ; (British Museum): *Clacton: (Webb, 4): *† Chig-
nal : (Specimen found in Christy Coll., 3—W.M.W.)
Vertigo pusilla, Muller.
A.—Crossness: (British Museum): Grays; (Woodward after S.V.
Wood).
B.— Barfield (sic) [? Bardfield] ; (French); *Copford ; (British
Museum): Shalford: (W.M.W.): *Chignal; (Christy, 3).
[Vertigo angustior, Jeffreys.]
B.—†Bushey Leys, Felstead ; (C.S.R., French) : *Copford ;
(British Museum) : *Clacton ; (Webb, 4) : Witham ; (British
Museum): *Chignal; (Christy, 3).
C.—Harwich : (British Museum).
Genus—BALEA, Prideaux, 1824.
Balea perversa, Linne.
A.—Epping ; (Newstead) : Redbridge Lane, Wanstead ;
(Crouch): Crossness; (Woodward): Grays; (Woodward
after S. V. Wood).