ae. 
| (Continued from Part 14), 
mR 
- Birmingham Natural History Society, Birmingham. 
~ Boston Society of Natural History, Boston, Mass, U.S:Ay ~~ 
Chadwick, A.; St»‘Mary’s Cathedral, Newcastle... 9 
Educational Depository, Kildare Place, Dublin, =. 
' Goings Rev. L) Hartford House, Parton sos Ss ey SS 
Gurney, R., F.Z:S., Ingham: Old Hall, Stalham: 8 
| Huggins, H., 13, Clarence Road, Gravesend, = St. ha a eae 
Leicester: Museum aud Art.Gallery.s oe “ay SS ee A 
“Marquis Monterosato; Via Gregorie, Palermo, 
Reh; Drs Naturhistis Museum; Hatibure “13-02 Oa et ee 
Steenberg, C. M., Observatory, Copenhagen, 0) 2 Sica 
Ry 
Thaamim, D> Halos Hawai 77d er es haw ee 
Taylor, J. Kidson, 45, South Avenue, Buxton. : ig 
~~ (itvina hibernica sp nove Platte oe a 
Vitrina elongata Taylor, Irish N at., Aug. 1907, pp- 225-231, and pl. 26-(not Drap.).o : 
Vitrina pyrenaica-Bowell; Trish N ate, May 1908, pp, 94-98, and pl/4 (not Ber). 
In August 1907; 1 brought forward as néw to the British Isles, a Vitrina fi 
+ ounG 53) 
at Collon in) county Louth by Mr. P, H. Grierson; which, from an €xamination of —— - 
the shell only, | referred to V2trina. elongata, 'a species found chiefly in the Alpine ©, ~ 
regions of Europe.  Sincé that time, through the efforts of the discoverer and other (> |. 
collectors, liying specimens have heen obtained and have been carefully examined 
and studied in collaboration with Dr. Simroth; of Leipzig, our greatest authority on» 
this group, who is chiefly responsible for the dissections of the reproductive system. 
The result of the anatomical’ investigations show’ that the. Irish specimens, 
though intinately allied to V. elongate, are yet quite distinct, and they are now. 
distinguished “as.a new species, for which V, Aiberniea is an appropriate name, ee 
The deséription of the ANIMAL and SHELL is oniitted here, the internal organiza: 
tion only being given: <= » % at ; LO Ros 
; ; é f Ree ; rage ; fee oy Aare ig pms PENSE 
“Fic, 1,—Shell of V#trina hibernice, showing the basal frontal; and ‘upper aspects; x 6. ae ee = rp 
The JAW or mandible is of an amber colour, flathy 9° cypy e s 
-crescentic-in shape, with distinctly reeurved<ends ; it >.) Se silane the 
exceeds. half-a-millimetre in length from side to side, , Se pac 
“and is of the usuak oxygnathous type, with a strong”. > | gh ne 
chitinous ‘projection or elasma~ behind ;. the ‘median » ES oe 
rostrum. or beak is blunt and not prominent, with some- © 
what distinct vertical striz; which ‘are continued upon ~ %& 
the chitinous: posterior prolongation; the remaining. ~ 900° wee 
anterior surface of «the mandible shows indications oF oes Pais igo gall le Sa AC 
strize more or less parallel with the upper margin. AOE a A Seat ion de de Male 4S 
The RADULA is of the usual oblong shape, and in the specimen fignred is eom- 
posed of about 127 .ows of 73 teeth each. The median-row is distinctly tricuspid, > 
a long and somewhat slender mesocone being flanked by a,pair of.comparatively ~~ 
insignificant ectocones ; the laterals are thirteen in number, and also tricuspidate, —"- 
the ectocone being more basally placed. and more strongly developed than the’ ~~ 
endecone, which. gradually diminishes in size and’ prominence; the inner marginals © ~~ 
i oN f Pe < 13 is 5 % 
| : : * . a $ f-0 7 R ag 7 0% ‘ paaiy ¥ ; 
Fic. 3.—Représentative teeth from the radula-of 17. hibernica,-showmg median, lateral, and’) _ f 
marginal teeth. Bormula $e + FS + 24K 127 = 9,525 teethi 20 Oo, Ee eyed higsas 
“are bifid, the endocone of thé Jateral teeth having, become obliterated, and the ~~ 
ectocone also being much reduced in importance until at abont the twentieth row. * © 
it also disappears and the teeth become simply aculeate; the extreme outermost \ 
rows being quite rudimentary, pe Me heen Se a Bee 
Y tess as 
Y eat a f 
