190 TESPERTILIONID^. 



The face in front of the ears is almost completely naked, along 

 the margin of the upper lip some fine straight hairs form a fringe. 

 The wing and interfemoral membranes are also devoid of fur, which 

 appears to be strictly confined to the body. 



Fur, above, dark brown, with light brown extremities ; beneath 

 similar, with ashy, almost white, extremities, which cause the fur 

 on the ventral surface to appear whitish throughout. 



Upper incisors very like those of V. serotinus, the inner in- 

 cisors long, stout, and bifid, more than twice the transverse diame- 

 ter of the small outer incisors, which lie close to their bases and 

 slightly in front, as in V. serotiims ; lower incisors indistinctly 

 trifid and crowded ; first lower premolar about half the size of the 

 second. 



Length (of an adult $ ), head and body 2"-2, tail l"-8, head 0"-75, 

 ear l"-2, tragus 0""5, forearm l"-8, thumb 0"-32 ; third finger — 

 m.etacarp. l"-55, 1st ph. 0"'55, 2nd ph. 0"-8; fourth finger — meta- 

 carp. 1""5, 1st ph. 0"-45, 2nd ph. 0"-4o ; fifth finger — metacarp. 

 l"-45, 1st ph., 0"-45, 2nd ph. 0"-35 ; tibia 0"-75, foot 0"-35. 



Hah. Neotropical Region (Bolivia, Peru, Chili, Meudoga). 



c, h. ad. sks. Bolivia. Purchased. 



c. inim. sk. Huasampilla, Peru (9000 feet). Pm-chased. 



d. ad. sk. East coast of Peru. 



e,f. ad. sks. Chili. Purchased. 



g, h. ad. sirs. Chili. Purcb.ased. 



i. ad. $ , al. Chili. Purchrcsed. 



j. ad. 5 ) al. Mendofa. Purchased. 



h. ad. sk. ■ Purchased. 

 /. skull of a. 



4. Vesperugo magellanicus. 



Vespertilio magellanicus, PMMppi, Wier/m. Archiv, 1866, p. 113. 

 Vespertilio capucinus, Philippi, I. c. p. 114. 



Vesperus magellanicus, Peters, MB. AJcad. Berl. 1875, p. 793, pi. 

 figs. 4, 5. 



Distinguished from V. montanus by the much smaller ears, which 

 scarcely exceed the head in length, and by its slightly smaller size. 



Length (of the type of V. aqmeinus, according to Peters), head 

 and body 2"-2, tail l"-8, head 0"-76, ear 0"-8, forearm l"-7, thumb 

 0"-35; third finger— metacarp. l"-6, 1st ph. 0"-6, 2nd ph. 0"-85; 

 fourth finger— metacarp. l"-6, 1st ph. 0"-48, 2nd ph. 0"-48; fifth 

 finger— metacarp. l"-58, 1st ph. 0"-45, 2nd ph. 0"-35 ; tibia 0"-7, 

 foot 0"'4, calcaneum 0"-73. 



Hah. Straits of Magellan. 



The types of V. magellanicus and V. capiicimis have been ex- 

 amined by Dr. Peters. That of the former is a stuffed skin of an 

 immature 5 , of the latter the stuif ed skin of an apparently adult (J . 

 In both the tails are wanting. The length of the ears may have 

 been considerably reduced by the drying process used to preserve 

 the skins ; and this form is probably really more closely allied to 

 V. montanus than appears from an examination of a badly preserved 

 skin. 



