10. HHINOrOMA. 399 



but differs in tlie absence of tbo dorsal stripe, and is therefore, as 

 Dr. Peters remarks, to N. alhiventer as N. unicolor to N. dorsatus. 



a, b. Pimm. sks. Bolivia. Mr. Bridges [C.]. 



(Witb very distinct dorsal streak.) 



c. c? ad., al. (without dorsal streak). M. Lidth de Jeude. 



d, e. skulls of a, h (with sagittal crest not more developed 



than in N. leporimis). 

 f. skull of c (with greatly developed sagittal crest described above). 



The following Table exhibits : — in the first column the measure- 

 ments of an adult male specimen of N. leporimis from Venezuela, 

 ■with distinct dorsal streak ; in the second, those of a smaller but 

 adult male of the same species, without dorsal streak, from Deme- 

 rara ; in the third, those of an adult male of N. alhiventer without 

 dorsal streak, from the collection of M. Lidth de Jeude. 



Nociilio leporinus. N. alhiventer. 



Length, head and body, about 40 3-25 27 



tail M 1-2 0-9 



head 1-25 1-2 10 



ear I'O 095 0-85 



tragus 0-25 025 0-25 



forearm 35 3-25 2-5 



thimib 0-48 045 0-4 



„ third finger, metacarpal 30 2*8 215 



1st phalanx 0-9 085 0-53 



2nd 2-9 2-7 2-1 



,, fourth finger, metacarpal 31 29 2'2 



1st phalanx 055 0-55 0-33 



2nd „ 1-5 1-45 2-05 



fifth finger, metacarpal 2-95 2-75 2-15 



1st phalanx 07 07 043 



2nd 0-4 0-3 0-15 



tibia 1-45 0-9 



,, calcaneum 1'6 1'4 



„ foot 1-1 0-6 



Group EHINOPOMATA. 



10. EHINOPOMA. 



Rhinopoma, Geoffroy, Descript. de TEgypte, ii. p. 123 (1812) ; Gray, 

 P. Z. S. 1866, p. 82; Dobson, Monogr. Asiat. Chiropt. p. 174(1876). 



Crown of the head slightly elevated above the face-line ; muzzle 

 thick, obtuse, the superior extremity projecting ; nostrils valvular, 

 in the front surface of a fleshy prominence at the anterior extremity 

 of the muzzle ; ears united across the forehead, which is deeply concave 

 between the eyes, as in Taphozous ; tragus distinct ; index finger 

 with two phalanges ; tail slender, produced considerably beyond the 

 truncated interfemoral membrane. 



Dentition. Inc. |, c. \^, pm. ^^, m. ^^^ 



Tipper incisors rudimentary, suspended from the small premaxil- 

 lary bones, which are united in the centre, and connected laterally by 



