BATS. 211 



Gen. Vespertilio, L. 



Thin-eared Bats. Nattblacka, Sw. Ears never shorter 

 than the head, thin and transparent, and pointed. 



6. YESP. MYSTACINUS, Leisl. Mustascherad Nattblacka. The 



Whiskered Bat. D. 



Length 1 in. 7 L; tail 1 in. 4i 1.; forearm 1 in. 3 1. 

 Interfemoral membrane with ten to twelve distinct trans- 

 verse lines, but with no fringes ; ears as long as the 

 head, black, nearly transparent ; tragus longer than 

 half the ear, pointed, colour above blackish or chestnut 

 brown, under whitish; upper lip furnished with a 

 moustache of long fine hair, whence its name. 

 Is rare in Scandinavia, and confined to the south and 

 south-east provinces. 



7. YESP. DAUBENTONII, Leisl. Daubenton's Nattblacka. 



Daubenton's Bat. D. 



Length about 2 in.; tail 1 in. 4 1. Colour above 

 reddish grey, below whitish. Interfemoral membrane 

 without streaks or fringes ; ears shorter than the head, 

 indented on the outer edge, transparent, as well as the 

 tragus, which is lancet-shaped, and half as long as the 

 ear ; lower canines not higher than the molars. 

 Vesp. emarginatus, Jenn., the notch-eared bat, ac- 

 cording to Nilsson, is this species. 



Has hitherto been met with only in the south and south- 

 east provinces of Scandinavia. I have, however, this year 

 obtained specimens from Wermland. 



8. YESP. DASYCNEMUS, Boie. 



Colour, size, and form much resembling the last, 

 but the edge of the ear is plain in the middle ; tragus 

 not so long as half of the ear, and very slightly taper- 

 ing; interfemoral membrane partly clothed with hair 

 underneath; third joint of the third finger shorter 

 than the second joint ; lower canines higher than the 

 molars. 



