269 
DAUBENTON’S BAT IN NORTHUMBERLAND 
AND ON THE BORDERS, 
WITH SOME REMARKS UPON THE OTHER SPECIES 
RECORDED FOR THE DISTRICT. 
GEORGE BOLAM, 
Berwick-on-T weed. 
So little attention has been paid to the Bats of the extreme north 
of England, that the result of a careful search through most of 
the periodicals bearing upon the Natural History of the district 
is meagre almost beyond belief. Indeed, with the exception of 
an occasional remark upon ‘an early bat, or one seen abroad 
during the day-time, almost no allusion is made to the family, and 
little, if anything, appears to have been done towards identifying 
the species of the individuals met with. Selby, in his ‘Fauna 
of Twizell,’ includes three bats (Plecotus auritus, Vespertilio pipis- 
trellus, and V. emarginatus—the latter only in one edition, an 
marked as doubtful); and the only other attempt at working out 
the Vespertilionide in the northern counties which I have been 
able to find, is contained in the admirable ‘Catalogue of the 
Mammalia of Northumberland and Durham,’ by Messrs. Mennell 
and Perkins, published in the ‘Transactions of the Tyneside 
Naturalists’ Field Club,’ vol. vi., pp. 111-177 In that ‘Catalogue’ 
seven species are included, viz., P. auritus, V. nattereri, V. dauben- 
tonit, V. emarginatus, V. mystacinus, V. serotinus, and V. pipistrelius ; 
but since its publication in 1863-64 much additional knowledge 
has been gained with respect to these obscure creatures, and 
the V. daubentonii and V. emarginatus, there alluded to, are now, 
I believe, generally referred to one species only, while as, with the 
exception of the two common species (P. auritus and V. pipistrellus), 
the whole of the above rest upon the capture of single individuals, 
the correct identification of some of which may, perhaps, be regarded 
as not altogether satisfactory or conclusive. This doubt is more- 
Over strengthened by the discovery that the specimen included in 
the catalogue as V. serotinus, and which is fortunately still preserved 
in the Newcastle Museum, is in reality a Noctule (V. noctula), as 
pointed out by Mr. W. Denison Roebuck in ‘The Naturalist,’ 1884, 
P- 202, and referred to by Mr. T. Southwell in ‘ The Zoologist,’ 
1887, vol. xi, p. 234. . 
Of the species referred to by Messrs. Mennell and Perkins, 
three only had been recorded for Northumberland, the others 
having been obtained upon the Durham side of the Tyne; and, 
Sept. r892. 
