. 
174 PYRAMIDULA RUPESTRIS. 
Var. viridescenti-alba Jeffreys, Brit. Conch., 1862, vol. i., p. 221. 
SHELL greenish-white. 
Gloucester W.—Clifton near Bristol, Mr. Webster (Jeffreys, l.c.). 
Pembroke—Wall by Penally station, Rev. H. Milnes. 
Galway W.—Specimens of a trochoid form found on a wall under trees near 
Kilronan, Inishmore Island, and Ross, Sept. 1906, G. W. Chaster. 
Monst. sinistrorsum T'aylor. 
SHELL sinistrally coiled. 
France—Cited by Moquin-Tandon on the authority of Moitessier, amongst the 
species of which sinistral forms are known. 
_ Geographical Distribution.—P. rupestris is distributed throughout 
Central and Southern Europe, and extends as far as Sicily and Algeria. 
(WQ Probable Range. MBM Pecorded Distribution. 
Fria. 231.—Geographical Distribution of Pyramidula rupestris. 
In the British Isles the species is somewhat erratically distributed over 
the whole kingdom, its occurrence probably in most cases indicating the 
outcrop of limestone rocks. 
ENGLAND AND WALES. 
Channel Isles—On walls, Grande Havre, Vale, Guernsey, July 1885 ! (Tomlin 
and Marquand, Journ. of Conch., 1903, p. 87). 
PENINSULA 
Cornwall W.—Falmouth, Jan. 1886 ! J. H. James. Included doubtfully for 
Mount’s Bay by Mr. E. D. Marquand (West Cornwall List, 1884, p. 5). 
Cornwall E.—Lanteglus by Fowey, June 1887! C. P. Richards. On old walls, 
West Looe, April 1909, A. H. Jowett-Murray. 
Devon S.—Torquay, Oct. 1884! Mrs. Oakeshott. Plymonth, abundant, May 
1885 ! C. G. Barrett. Teignmouth, Sept. 1888 ! Loftus St. G. Byne. 
Somerset N.—Common in crevices of limestone rocks on Clevedon and Elton 
Hills; Cleeve Toot; St. Vincent Rocks; Wrington Hill; Cheddar Cliffs, ete. 
Often exceedingly abundant among rotten mortar of old walls, as behind the 
Royal Hotel, Clevedon, and in many parts of the Mendips (A. M. Norman, 
Somerset List, 1860). Cheddar, Aue. 188t! J. Madison. On old walls, Bath, 
June 1886, Miss Fairbrass. Yeovil, J. H. Ponsonby. 
