MAMMALIA. 



Geoffroy Saint Hilaire,* under the above name, with the exception of a slight 

 difference in the dimensions ; I will, therefore, add those of the present specimen, 

 which is a female. It may be observed, that in the animal before me, the tragus 

 of the ear is pointed, and not bifid at the apex, as represented in plate xi of the 

 work quoted. 



Length of head and body 

 antibrachium 

 nose-leaf 



In. Lines. 

 4 

 2 7 

 5 

 8i 



In. Lines. 



Length of tragus 3 



tibia 10 



Expansion of the wings . . .16 8 



" This bat was caught at Bahia, (latitude 13° S.) on the coast of Brazil, 

 in consequence of its having flown into a room where there was a light. I 

 scarcely ever saw an animal so tenacious of life." D. 



Family— VESPERTILIONID^. 



Vespertilio Chiloensis. 



Plate III. 



V. fuscus : auribus mediocribus ; trago elongato, angusto, apicem versus attenuate ; 

 fronte concavo; rostro ob'tuso ; caudd ad apicem extremum liberd. 



Description. — In size and colouring, this Bat very closely resembles the Ves- 

 pertilio Pipistrellus of Europe ; the wings, however, are considerably broader 

 in proportion ; the antibrachium, tibia, and tail, are each of them longer ; the 

 tragus of the ear is also longer, and narrower. 



The muzzle is short and obtuse, and furnished on each side with numerous 

 hairs, which, when compared with those of other parts, are of a more harsh 

 nature. The nose is naked at the apex. The forehead is concave. The 

 ears are narrow, and somewhat pointed, emarginated externally, and have 

 about four transverse rugae : the tragus is elongated, narrow, and pointed, and 

 has the outer margin very obscurely crenulated. On the chin there is a 

 small wart, from which spring several stiffish hairs. The tail is about equal 

 to the body in length, and has the extreme tip free. The fur is moderately 



* " Annales des Museum d'Histoire Naturelle," torn. xv. p. 176. 



