30 CHEIROPTERA. 



wick, on the Rhine, near Trieste in the Alps, and also 

 in the Ukraine, but nowhere in numbers. 



Vespertilio Missouri. 



Vespertilio Niksonii, Keyserling u. Blasius, Wirbelth. Europ. p. 50 ; 

 Schinz, Europ. Eaun. vol. i. p. 426 ; De Selts Lono- 

 champs, Micromm. p. 139. 



Description. — Teeth 32 in number; four grinders in the 

 upper jaw ; the two last joints of the tail free ; the flying 

 membrane originates at the toes ; the outer margin of the 

 ear ends on a line with the gape, about 1-| line behind it ; 

 the greatest width of the tragus is below the middle of the 

 inner margin of the ear ; the fore-arm, when pressed against 

 the side, reaches only to the gape ; the second joint of the 

 fifth finger reaches far above the middle of the same joint 

 of the fourth finger ; the membrane of the tail is thickly 

 clothed, as far as its middle, with long hairs ; all the mem- 

 branes have their under side adjoining the body thickly 

 covered with brown hair ; the hair on the upper parts of 

 the body are dark brown for two-thirds of their length, the 

 tips being whitish brown, and forming a triangular space 

 on the back j those on the parts beneath are also dark 

 brown below, with light brown extremities ; under the ear 

 is a light spot ; the first upper incisor is nearly as large as 

 the second ; the lower incisors have their edges parallel to 

 each other, but placed obliquely to the jaw, so that they 

 partly overlap ; the first grinder of the lower jaw is almost 

 as high and as strong as the second. 



Length of head and body, 2 inches 1 line ; tail, 1 inch 

 9 lines ; extent of wing, 10 inches. 



Inhabits the Hartz Mountains in Germany, and the 

 mountains of Sweden and Norway, probably extending 

 nearly to the Polar Circle. Blasius informs us that it is 

 very common in the North of Eussia. 



