October, 1914. 
The Irish Natnralist. 
205 
A NOTE ON THE ANATOMY OF THE 
IRISH VITRINA DESCRIBED AS V. PYRENAICA 
OR V. HIBERNICA. 
BY A. E. BOYCOTT. 
PLATE I. 
Two different accounts have been given of the morphology 
of the proximal parts of the generative apparatus of the 
new Irish Vitrina discovered by Mr. P. H. Grierson^ in 
Co. Louth, which was originally identified by J. W. Taylor » 
as V . elongata (Drap.), subsequently by E. W. BowelP as 
V. pyrenaica (Fer.), and finally redescribed by J. W. Taylor* 
in conjunction with Simroth as a new species under the 
name of V. hibernica. 
Fig. I. — Proximal parts of the generative apparatus. 
In figure i is represented what may be readily seen 
on gross dissection of the species in question. Into the 
end of the atrium (at.) or vestibule are inserted four obvious 
organs. The oviduct (ov.) aiter receiving the duct of the 
spermatheca (sp.) is clearly seen opening into the atrium ; 
^ Journ. Conch., xi. (1904), p. 125. 
^ Irish Nat., xvi. (1907), p. 225. 
^ Irish Nat., xvii. (1908), p. 94. 
* Monogr. Brit. Land c^nd Fresh-water Moll., iii. (1914), p. 449. 
A 
