538 PHTLLOSIOMID^. 



the basal three fourths of the hairs pale shining brown ; beneath, 

 greyish brown. On the face four very distinct longitudinal white 

 bands — two superior extending from either side of the posterior 

 margin of the base of the nose-leaf directly backwards to the back 

 of the head ; two inferior passing backwards along the upper lip 

 and below the eyes to the ears. On the back a narrow but distinct 

 white stripe commences at the back of the head and extends along 

 the spine to the termination of the fur behind. 



The fur of the body extends upon the back of the forearm and 

 adjacent wing-membrane for more than half its length, and upon 

 the wing-membrane almost as far outwards as a line drawn from 

 the elbow to the knee ; the interfemoral, the legs, and the feet are 

 almost quite naked. 



T 4 1—1 2—2 2—2 



Inc. y, c. Y=i, pm. 2=2' ™- 3=3- 



Upper incisors aa in Ch. pusillwm, the extremities of the central 

 incisors slightly notched, the two lower incisors faintly grooved ; 

 premolars also as in Oh. pusillum ; second upper molar scarcely 

 larger than the first molar ; third lower molar very small and cir- 

 cular (not discernible without the aid of a lens) , placed directly behind 

 and close to the second molar. 



Length, head and body 2""25, ear 0"-55, nose-leaf 0"*35, forearm 

 l"-4, thumb 0"'45 ; third finger — metacarp. l"-4, 1st ph. 0"-5, 

 2nd ph. 0"-8, 3rd ph. 0"-45 ; fourth finger— metacarp. l"-3, 1st ph. 

 0"-4, 2ild ph. 0"-55 ; fifth finger— metacarp. l"-3, 1st ph. 0"-3, 

 2nd ph. 0"-45 ; tibia 0"-5, foot 0"-4. 



Hub, Peruvian Amazons. 



a. 2 ad. sk. Huallaga. E. Bartlett [C.]. 



28. PTGODERMA. 

 Pygoderma, Peters, MB. Akad. Berl. 1865, p. 357. 



Muzzle very short and much thickened in a vertical direction ; 

 ears and nose-leaf generally as in Artibeus ; interfemoral membrane 

 short. 



Dentition, Inc. j, c. ^^, pm. ^^, m. g^. 



General character of the teeth as in Stenoderma, but the last 

 molars in both jaws (corresponding to the large second molars in 

 other genera of Stenodermata) reduced to a very small size ; facial 

 bones greatly expanded laterally and vertically. 



1. Pygoderma bilabiatum. 



Phyllostoma bilabiatum, Wagtier, Wiegrn. Archiv, 1843, p. 366; 



Btirmeister, Thiere Brasiliens, Sdngeth. p. 47 (1854). 

 Arctibeus leucomus. Gray, P. Z. S. 1848, p. 57. 

 Stenoderma (Pygoderma) microdon, Peters, MB. Akad. Berl. 1863, 



p. 83. 



Muzzle short and very thick ; nose-leaf higher than broad, 



