a. 
458 APPENDIX—HYALINIA CELLARTIA. 
Var. compaeta Jeffreys. 
Dr. Joly probably included with this variety the //yalinia lucida 
Drap., but this does not necessarily invalidate the name he used, although 
the supposition that such is the case has led to the proposal to call this 
form sydneyensis, a name published by Dr. Cox in 1864 to distinguish 
the Australian specimens of Hyalinia cellaria. 
This variety, which is evidently in a great degree of a transitional 
character, has naturally been especially fertile in affording suggested new 
species, and two closely allied varieties of H. cellaria (Miill.), which are 
perhaps best included under the var. compacta, have in recent years been 
brought forward by Messrs. Kennard and Bowell as new to science under 
the names of Vitrea scharfii and Vitrea (Hyalinia) hibernica, and although 
in their most characteristic form these proposed species may be readily 
distinguishable conchologically from typical cellaria, yet they have not 
hitherto been demonstrated to possess any sufficiently constant and reliable 
characters to entitle them to specific rank. 
The sub-var. Aibernica was brought forward in the Irish Naturalist for 
Noy. 1907, as Vitrew (Hyalinia) hiber nica, Which contained a description 
and figures of the shell and some account of the organization with illus- 
trations by the Rev. E. W. W. Bowell, and although Dr. Bittger, to whom 
specimens were sent by Mr. Kennard for determination, remarked :-—“'The 
Hyalinia from Murlough Bay I have as cellaria var. compacta Jeffreys 
from Gill’s Bay, Caithness,” yet Messrs. Kennard and Bowell decided to 
describe it as a new species. 
Mr. A. W. Stelfox and others, who have especially studied this question, 
practically regard all full-grown Irish specimens of //. cellaria as referable 
to hibernica, vik only exceptions being those inhabiting some of the eastern 
counties, which do not appear to grow beyond the usual size of English 
specimens. 
Pic. 524,—I trea (Hyalinia) hibernica K. & P., Fic. 523.—Hyalinia cellaria Miill., x 2, 
2, Riostre vor, Down (after Kennard). Lancaster, (after Kennard), for comparison. 
The shell is described by Mr. A. 8S. Kennard as :— 
Vitrea hiberniea n.sp.—SiHkeLL somewhat convex above, less so beneath, thin, 
glassy, semitransparent, pale horn {colour above, elonded white beneath ; sTRIa 
parallel with the mouth and more pronounced at the suture; WIORLS 5-6, hody- 
whorl about half the size of the shell; spire slightly produced; APEX blunt; 
SUTURE shallow and grooved ; MOUTII semilunar and somewhat oblique ; UMBILICUS 
narrow and deep. Height 6-7 mm. Breadth 11-14 mm. It ean be distinguished 
trom J’, cellavia by the greater height of the spire and by the more oblique mouth ; 
this last being very noticeable in adult examples, though less so in immature 
specimens (pl. 42, fig. 4-7). 
The Rev. KE. W. W. Bowell describes the specimens of Aébernica as larger 
than the average cellaria, and the animal as having the body of a dark 
slate-blue colour somewhat resembling the tone of the pigment known 
