258 Prof. MacGillivray on Vesper tilio Daubentonit, 



Male. Female. 



Cubitus, 16 16 



PoIIex, 3i 8 



Its claw, li li 



Index, ....... 1 6 14 



Third finger, 2 7 2 3 



Fourth, 2 li 1 10 



Fifth, ........ 2 19 



Femur, ...... 6i 06 



Tibia, 9 7h 



Inner toe, 3| 8 



Its claw, li 1 



Outer toe, 2i 1 



Its claw, . li 1 



In the young individual, the fur is shorter and less dense, 

 on the head thin ; the upper parts of a sooty-black, the lower 

 dull grey, mixed with dusky. Length 2^ inches. 



In the male, the heart ovato-oblong, 4 twelfths in length ; 

 the spleen 6 twelfths long, 1 twelfth in breadth ; the stomach 

 ovato-elliptical, 7 twelfths long ; the intestine 8 inches long ; 

 the liver very large, and lobed ; the kidneys ovato-elliptical, 

 a little curved, 2| twelfths long ; the testes' broadly elliptical, 

 li twelfth long. 



This species is distinguished from the Pipistrelle by its larger 

 size, and different proportions, but especially by the form of 

 the tragus, which is much narrower, and not broadly rounded 

 at the end, but tapering to a point, which, however, is not ex- 

 actly acute. 



As to its habits, I can only say that it appears to differ in 

 no respect from the Pipistrelle and several other species. It 

 flies about in the evenings, in clear nights, occasionally by 

 day in very dull weather, and retires from the light, seeking 

 refuge in the steeples of the church, where it also hibernates. 

 It is very much infested with parasites of three species, inso- 

 much that the membranes of the two adult individuals de- 

 scribed above, were dotted all over with inflamed spots caused 

 by their punctures.- 



That this species has ever been met with before in Scot- 

 land is not apparent. Dr Fleming's " V. emarginatus. — Ears 

 the length of the head, oblong, with a notch on the exterior 

 margin," is too briefly described to enable one to recognise it ; 



