HYALINIA NITIDULA. ral 
Parasites and Enemies.—'his species is not unfrequently infested 
by an Acarus apparently identical with the PAélodromus limacum, which 
is a prevalent parasite on the slugs generally. 
It would seem to be a favonrite food of the stockdove, as Mr. ©. E. 
Wright has verified that of 578 shells taken from the stomach of a single 
bird, fully 400 belonged to this species. 
Geological History.—/Myalinia nitidula has been reported from the 
Pleistocene and Holocene beds in several localities in this country and 
from as low as the Upper Miocene in Germany. 
Upper Mrocenr.—Herr Clessin describes Hyalinu subnitens as numerous 
in the Upper Miocene deposits at Mérsingen near Undorf, Bavaria. 
Lower Purocenr.—In France, M. Locard reports HZ. nitens from the 
Lower Pliocene beds at Hauterive in the department of the Drome. 
PLEISTOCENE.—In West Sussex, Mr. J. P. Johnson has found A. nitidula 
in the buried river-bed deposit on the foreshore at West Wittering. 
In East Kent it is recorded from the freshwater marls at Charing and 
Maidstone by Prof. J. Morris. In West Kent it occurs at Stoneham’s Pit, 
Crayford, and in the brick-earths at Erith ; while Messrs. Kennard and 
Woodward record it from the Ightham fissure near Wrotham. 
In South Essex it is recorded from the brick-earths at Grays by Mr. 
Searles V. Wood ; while Dr. IF. Corner has ard found specimens in 
Sam Green’s pit, Ilford, and Mr. J. P. Johnson at the Uphall brickyard in 
the same district. In North Essex Prof. R. 'l'ate has reported it from 
the freshwater marls of Copford and Clacton. 
In East Suffolk it is recorded for Stutton by Prof. J. Morris. 
In Cambridgeshire, Mrs. MeKenny Hughes and the Rev. E. 8. Dewick 
report it from the gravel pits about Barnwell Abbey and Grantchester. 
In Yorkshire, Mr. 'I’. Sheppard has found it at Bealsbeck near Market 
Weighton, in a very tough, dark, lacustrine marl of uncertain age, although 
remains of the lion, rhinoceros, elephant, etc., have been found therein. 
In Germany, Sandberger reports /7. nitidula as very rare in the Lower 
Pleistocene sands of Mosbach, Baden ; from the tufa beds of Cannstadt 
and Burgtonna in Thuringia; and those of Weimar in Saxe-Weimar ; also 
from the valley léess at Robschutz in Saxony. In the Mid-Pleistocene, 
H. nitidula and H. nitens have been found in the valley léess of Rob- 
schutz, and HZ. nitens rarely at Cannstadt. In the Upper Pleistocene, 
H. nitidula has occurred in tufa at Weimar, at Burgtonna, in the 
tufaceous beds of Pyrmont, and near Regensburg in Bavaria. 
In Switzerland, according to Sandberger, Mousson detected HZ. nitidula 
in valley loess at St. Gall. 
In France, M. Locard reports 17. nitens as found fossilized in the Lower 
Pleistocene beds at Boisse in Savoy; Michaud and Paladilhe record 
H. nitens from the Mid-Pleistocene deposits at Hauterive in the Drome, 
and from Celleneuve ; while M. Locard records it from those at Moret, 
Seine-et-Marne. M. Locard also reports H. nitidula from the Upper 
Pleistocene deposits of the Somme Valley ; and Von Ihering from diluvial 
tufa in French Switzerland. 
Horocene.—In West Cornwall, it was found in blown sand, ‘'owan Head 
and Fistral bay cliffs, Newquay (Kennard & Warren, Geol. Mag., 1903, p. 21) 
In Dorset, Mr. Clement Reid reports it from the tufaceous beds at 
Blashenwell near Corfe Castle. 
In the Isle of Wight, Kennard and Warren record it from Totland Bay, 
in a recent tufaceous deposit, at the top of the cliffs, between Headon Hill 
and Widdick Chine. 
