MUSEUM NOTES.
225
IV—PLEISTOCENE NON-MARINE MOLLUSCA FROM
CLACTON-ON-SEA, ESSEX.
By Wilfred Mark Wbbb, F.L.S., Memb. Malac. Soc.
In the Essex Naturalist some years ago1 the present
writer dealt with a number of Pleistocene shells from a locality
presumed to be some miles from Walton-on-Naze2 and found by
the late John Brown, F.G.S., of Stanway. More recently3 it had
to be admitted that this locality was one and the same with
Clacton, whence Brown also described shells of like age. The
first mentioned specimens being in the possession of the Essex
Field Club, a list was given in detail. Since then however, the
presentation of further specimens as noted below, and the
alteration in the locality, has rendered it advisable that a corrected
list should be made out. The present Note further verifies one or
two records of the older writers upon whose authority, up to the
present time, they solely rested, as none of the species in question
could be traced.
The specimens marked "J.W.K." form part of the small
collection of Pleistocene remains from Clacton, presented to the
Club by the Rev. J. W. Kenworthy, (see Essex Nat. vol. x. p.
406) and those marked "W.H.D." formed part of the collection
of Mr. W. H. Dalton, F.G.S., recently presented to the Club,
[both of which collections will be more fully described in a future
"Museum Note."—Ed.] The specimens without initials formed
part of the original "John Brown Collection."
GASTROPODA.
PULMONATA.
Stylommatophora.
Family—Limacidae.
Vitrea nitida, Müller, J. W. K. This shell is given by
Messrs. Kennard and Woodward (E.N. vol. x. in the table in the
paper above cited) on the authority of Mr. S. V. Wood.
Pyramidula ruderata, Stud. W.H.D.
Pyramidula rotundata, Müller. J.W.K.
Family—Helicidae.
Helicella caperata, Montagu.
Hygromia hispida, L. W.H.D.
1 E. N. vol. VIII. (1894) pp. 160-162.
2 Essex Herald, August 1st, 1843.
3 W. M. Webb, "The Non-Marine Mollusca of Essex," Essex Nat. vol. x.. p. 27; also
A. S. Kennard, and B. B. Woodward (with contributions by W. M. Webb), "The Post-
Pliocene Non-Marine Mollusca of Essex," E.N. vol. x. p. 9.