HYALINIA PURA. Sd 
Var. lenticula Held, Isis, 1837. 
SHELL more depressed, smooth, aperture 
and last whorl not dilated nor rounded. 
Oxford—Howe Wood, Watlington, June 
1908! W. Denison Roebuck. 
CONTINENTAL DISTRIBUTION. Fic. 125.—//. pura var. lenticula Held 
a 1 Aue : : seats (after Paulucci). 
Italy—Recorded by Pauluecci for Sardinia. 
Russia— Recorded from Kusary and Lenkoran in Baku; Suanetien, Mamudly, 
ete., in Kutais; Zalka, Mleti and Borschom in Tiflis; Helenendorf in Elizabetpol ; 
and Radscha and Manglis in Armenia. 
Sweden—Only in the province of Blekinge (Westerlund, Syn. Moll. 1897, p. 34). 
Denmark—Oceurs only on the Island of Méen according to Westerlund. 
Var. nitidosa Férussac. 
Zonites purus Jeffreys, Brit. Conch., i., p. 164, 1862. 
Zonites nitidosus Férussac, Tabl. Syst., 1821, no. 214. 
SHELL of a clear fawn or horn colour. 
Much confusion has arisen as to the precise identification of Férussae’s Helix 
nitidosus, of which the author published neither figure nor description ; but Mr. 
Alder, who examined the type specimens in Iérussae’s own cabinet, was emphatic as 
to their identity with the horn-coloured variety of H. pura. 
Geographical Distribution.—'lhis species, though seldom abundant, 
is widely but locally diffused throughout the British Isles ; its occurrence 
having been verified for very many comital and vice-comital divisions. 
It would seem, however, to be more plentiful in the north. 
In Ireland, the var. n?tidosw is most prevalent over the central lime- 
stone areas or near them, while in the north-east the typical form is 
common in many little glens and other damp places. 
See, 
Fig. 126.—Geographical Distribution of Hyalinia pura (Alder). 
Probable Range. Biss) Recorded Distribution 
Abroad, it has been recorded from Germany, France, Netherlands, Italy, 
Switzerland, Spain, Austro-Hungary, Scandinavia, and Russia, but many 
of the records are probably not reliable, as /7. pura is a species that is not 
well understood. 
