6. VESPERtJGO. 203 



16. Vesperugo propinquus. 



Vesperugo propinquus, Peters, MB. Akad. Berl. 1872, p. 262. 



Ears triangular, rounded-off above ; the ear-concli thickened 

 along the inner margin, flatly emarginate about the middle of the 

 outer side, and at the base with a rim directed inwards, but without 

 emargination. Tragus quite similar to that of V. borealis, but quite 

 straight on the inner side, broadest at the middle, and at the base of 

 the outer margin with a tooth-like lobe. 



Wings from the base of the toes ; the last two caudal vertebrae 

 free ; postcalcaneal lobe very distinct. 



The fur of the body extends outwards upon the wings as far as a 

 line drawn from the end of the proximal third of the humerus to 

 the knee, and not quite to the middle of the interfemoral membrane ; 

 beneath, the membranes are less covered, and the fur of the 

 abdomen extends only upon the base of the interfemoral 



Fur reddish above, the hairs dark brown at their bases ; beneath 

 paler, the tips of the hairs being more reddish yellow. 



The first upper incisor has two cusps ; the second incisor is 

 smaller in cross section, and has a single cusp slightly shorter than 

 the second cusp of the first incisor. The single upper premolar is 

 large. The two lower premolars are very pointed ; the first one 

 third smaller and shorter than the second, which is not quite as 

 high as the first true molar. The lower incisors are distinctly tri- 

 lobed, and placed parallel to the direction of the jaws ; the third is 

 much longer than broad. 



Length, head and body 2"-4, tail l"-8, ear 0"-6; tragus 0""23, 

 forearm l"-6, thumb 0"-36, third finger 2"-7, fifth finger 2", tibia 

 0"-7, foot 0"-35. 



Hab. Central America (Ysabel de Guatemala). 



The above description has been taken from Dr. Peters's original 

 notes on the species, of which I have not seen the type. It appears 

 to be very closely allied to V. borealis ; and when a large series of 

 specimens have been compared with an equally large number of V. 

 borealis from Europe, it may be found that V. propinquus is really 

 but a variety of V. borealis. 



Dr. Peters remarks that it is closely allied to V. borealis, from 

 which it is distinguished by the form of the ears and teeth. 



17. Vesperugo borealis. 



Vespertilio kuhlii, Nihson (non Natter er), Ilium. Fig. Scavdin. Fauna, 



haft 17. pi. 34 (1836). 

 Vespertilio borealis, Nihson, Ilium. Fi(/. Scand. Fauna, haft 19. pi. 



36 (1838) ; Lilljeborg, 8ver. Norges Ryggi-adsdjw , i. p. 129 (1874). 

 Vesperugo nilssoni, Keys. Sr Bias. Wiegm. Archiv (1839), p. 315; 



Wagner, Supjyl. ScJireb. Sciugeth. i. p. 498, v. p. 733; JSlasim, 



Fauna DeutscM. p. 70, figs. 47, 48 (1857). 

 Vesperugo borealis, Dobson, Monogr. Asiat. Chiropt. p. 105 (1876). 



Ears triangular, with broadly rounded tips ; the outer margin 

 straight, terminating close to and on a level with the angle of the 



