™, 
464 APPENDIX—-HYALINIA HELVETICA. 
helvetica; the marginals are comparatively short and not closely set, and 
attirmed to be totally unlike either Aedceticu or glubra Studer. 
The abnormality in admedian teeth of the radula of the specimen of 
H. helvetica wpou which Mr. B. B. Woodward in a large measure founded 
a: 
bic. ot0. Fic. ddl. Fic. Wi 
Fic. 540.—Half a transverse row of the radula of //. Ae-vetica Blum, from Solothurn, highly 
magnified (after Lowell). 
lic. 541.—The median and abnormal admedian teeth of I. B. Woodward's type specimen of //. 
helvetica Blum, from Solothurn, highly magnified (after Bowell). 
Fic. d42.—Half a transverse row of the radula of //. vogersé B. B. Woodward, from Westerham, 
highly magnified (after Bowell). 
his opinion of the distinctuess of British specimens, is stated by the Rey. 
Kk. W. W. Bowell to be due to a group of cells which normally fill the 
cavity between the mesocone and the endocone to prevent the advance of 
chitinization there, becoming themselves impacted within the cavity and 
chitinized. 
Mr. Bowell has also aftirmed other points of difference to exist between 
the continental //. helvetica and the English form which Mr. Woodward 
named V. regersi, the chief of which would appear to be the attribution 
of an enormous length to the stem of the spermatheca ; but in this it is 
probable there is some grave error, or if correct it leaves room for doubt 
as to the species actually under examination. 
ENGLAND AND WALKS. 
Devon N.—Braunton, May 1912 ! Mrs. Lonegstaff. 
Somerset N.—Creech Hill near Bruton ! F. A. Knight. Weston Wood, Bath ! 
kenneth McKean. 
Sussex W.—iast Dean, Sept. 1901, C. E. Wright. 
Essex S.—Eppine, Sept. 1886 ! 
Oxford—A richly coloured shell, Howe Woods, Watlington, May 1909! W. 
Denison Roebuck. i 
Norfolk E.— Costessey, 1908 ! A. Mayfield. 
Worcester--Recorded as |. vogersi from Lincomb in ‘ Victoria County History 
of Worcestershire,” by B. B. Woodward. 
Monmouth— Abergavenny and Wynd Cliff, April 1909 ! F. H. Sikes. 
Glamorgan—Common about Swansea, Oct. 1901 ! C. Oldham. 
Brecon—Llanerchwddland Wells, April 1909 ! F. H. Sikes. 
Radnor— Llanbychllyn Pool, Sept. 1909 ! J. Williams Vaughan. 
Cheviotland—Chillingham, Ang. 1909 ! W. Denison Roebuck. 
Cumberland—Bassenthwaite, 1901 ! W. J. Farrer. 
IRELAND. 
The Irish records of this species have been challenged by Mr. A. W. 
Stelfox and other Irish conchologists, who believe the specimens recorded 
as [. helvetica to have been really the form of //. cellaria, named by 
Kennard and Bowell Vitrea scharffi, and Mr. Kennard also states that 
Prof. Bottger, Dr. Westerlund, Dr. Blum, and others have all misnamed 
the specimens submitted to them, as he has seen some of the shells 
referred to, and affirms that they include both Atbernica and scharfi and 
are not helvetica. 
