NORTHUMBERLAND AND DURHAM. 163 
‘The most common species about Darlington,” W. Backhouse. 
* Castle Eden,” Rev. H. B. Tristram. 
(Sub-Genus, VESPERTILIO, Bonap.) 
2. V. NATTERERI, Kuhl. Reppisu-Grey Bar. 
We can only record one instance of the capture of this species, 
but so little attention has been paid to the bats of our district 
that this and other species may probably be more generally 
distributed and less rare than is usually supposed. 
“ On a tree in Hoffal wood, Durham.” “ This species has 
only seven or eight transverse lines on the inter-femoral 
membrane,” W. Backhouse. ; 
3. V. pAuBENTONI, Leisl. Dausrenton’s Bat. 
“ Darlington (Shotley Bridge ?)” ‘ This species has nume- 
rous transverse lines on the inter-femoral membrane, and 
six or seven parallel to the body, between the upper arm 
and the leg.” —W. Backhouse. 
“ Auckland St. Andrew, Durham.” A specimen of a white 
bat, taken in the church at this place, is preserved in the Univer- 
sity Museum at Durham. Its colour is doubtless accidental, but 
from some apparent differences between it and V. Daubentonii, 
to which he stated it was nearly allied, the Rev. L. Jenyns, who 
examined it, was led to describe and figure it as a distinct 
species, under the name of V. edzlis, in the Ann. Nat. Hist. IIT. 
(1839) p. 75. 
M. M. Keyserling and Blasius, however, pointed out that the 
characters of the supposed species were taken from those parts 
or organs most likely to be modified and distorted in dried and 
stuffed specimens, and that they were not sufficient to separate 
it from V. Daubentonit, with which the description and figure 
well agree (Wergmanns Archiv. Pt. I. 1840, and A. N. H., 
V. (1840) p. 149). In this opinion Mr. Jenyns fully concurs, 
and states that further examination has convinced him that it 
undoubtedly belongs to V. Daubentonii, of which it is merely a 
white variety. (A. N. H. VII. 1841, 262.) 
