1(5 



MR. G. E. DOBSON ON THE MOLOSST. 



[Nov. 7, 



species. Upper incisor on each side with a short outer basal cusp, 

 and separated from the canine by a slight interval ; first upper small 

 premolar in the space between the canine and second premolar. 



Length: head and body 3""0 ; tail 1"'4, tail free from membrane 

 0"*65 ; head 1""0; ear 0"'6, tragus 0"* 1 2 ; forearm I"8; thumb 

 0""34 ; second finger — metacarp, 1"*8, 1st ph. 0"*7, 2nd ph. 0"*65 ; 

 third finger — metacarp. l"v, 1st ph. 0"6, 2nd ph. 0"*2 ; fourth 

 finger — metacarp. 0"'65, 1st ph. 0"*55, 2nd ph. 0"* 15; tibia 0'"55; 

 foot and claws 0"'4-±. 



Hab. Buenos Ay res. 



I have not seen the single specimen as yet obtained of this 

 recently described species. I have therefore been obliged to copy 

 Prof. Peters's original description, which is accompanied by an 

 excellent plate. 



Genus Nyctinomus. 



Nycthiomns, Geoffrey, Descript. de l'Egypte, ii. p. 114 (1812) ; 

 Horsfield, Zool. Eesearches in Java; Gray, Mag. Zool. Bot. ii. 

 (1838), p. 500; Peters, Mon. Akad. Berl. 1865, p. 573. 



Dinops, Savi, Nuov. Giorn. de' Lett. p. 230 (1825); Bullet, des 

 Scien. Nat. viii. p. 286 (1826). 



Dysopes, Cretzschmar (non Illiger), Riippell, Atlas Reise nordl. 

 Afrika, Zoolog. (1826), p. 69; Temminck (in part), Monogr. 

 Mammal, i. p. 226 (1835-41). 



Fig. 3. 



Head of Nyctinomus macrotis. 

 Antitragus; b. Keel of the car-couch ; c. Notch behind antitrawus. 



Ears united on the muzzle, or close together by the bases of their 

 inner margins ; tragus short, quadrate, or rounded off above, never 

 linear ; extremity of the muzzle broad, very obliquely truncated, 

 projecting considerably beyond the lower lip, terminated by the 

 sharply cut margin of the nostrils ; upper lip very expansible, 

 generally deeply grooved with vertical wrinkles ,• wings and feet as 

 in Molossus. 



Dentition.- 



T 2 2 n 1—1 n 2—2 



-Inc. ^ or-, C. r=i , Pm. ^ or 



M 



3—3 



a— 3* 



