84 Scientific Proceedings, Royal Dublin Society. 
and the red deer;* it is also common in bogs and river de- 
posits, but in no instance has its exuviee been met with in the 
shell marl in conjunction with those of the Irish Elk and other 
extinct mammals: indeed it would appear that this ox was in- 
troduced into the British islands in early prehistoric times from 
the continent of Europe, and was reared by neolithic man. 
Neither the urus nor the bison have been found in Irish deposits, 
although the former is reported from Scotland. 
The living and extinct Irish mammals, according to the views 
expressed in the preceding pages may be classified as follows :—t 
CHIROPTERA. 
Rhinolophus hipposideros. 
Plecotus auritus. 
Vesperugo Leisleri. 
Vespertilio pipistrellus. 
Vespertilio mystacinus. 
Vespertilio Nattereri. 
Vespertilio Daubentonii. 
INSECTIVORA. 
Erinaceus Europzeus. 
Sorex pygmeeus. 
RODENTIA. 
(Sciurus vulgaris.) 
(Mus rattus.) 
(Mus decumanus.) 
(Mus sylvaticus. ) 
(Mus musculus.) 
Lepus variabilis. 
Lepus cuniculus. 
* Du Noyer, Jour. Geol. Soc. Dublin, vol.i., p. 248; and Ball, vol. i., p 253. 
+ The species within parentheses are considered either ‘“ doubiful” or are believed to 
have been ‘‘ introduced.” The ‘‘ extinct” are printed in Italics. 
I am indebted to Mr. More, F.L.S., M-R.I.A., of the Dublin Museum of Science and 
Art for a list of the recent mammals of Ireland, and my thanks are also due to Mr. 
Alston, F.L.S., for a similar list of the distribution of the species in the British 
Islan‘s. 
