532 



PHTLLOSTOMrD.E. 



wards from the nasal opening as far as the space between the 

 orbits* (see Plate XXIX. fig. 3 6). 



Range. Mexican and Brazilian Subregions. 



This genus is undoubtedly closely allied to Vampyrops, as the 

 form of the tragus, the muzzle and nose-leaf, and the well-marked 

 facial streaks show. The form of the upper and lower first pre- 

 molars is, however, very different and peculiar (see Plate XXIX. 

 figs. 2, 3) ; the second molar in both jaws is larger than any of the 

 other teeth ; and in immature specimens of the different species a 

 well-defined cleft extends backwards from the nasal opening in the 

 middle between the orbits. (See description of skull of Ohiroderma 

 villosnm, p. 534.) 



Synopsis of the Species. 



4 2 2 



I. Inc. J, m. 2i^; no white line along the spine. 

 II. First lower premolai' nearly flat-crowned, 



without a distinct cusp. 

 n'. Four broad very distinct white streaks on 



the head ; forearm 2" 1. C'h. sah-ini, p. 532. 



h. First lower premolar with a distinct anterior 

 cusp. 

 b'. Second lower molar nearly double the first 

 molar in antero-posteiior diameter ; head- 

 streaks narrow; forearm 1"'86 or more. . 2 Cli. villosum, p. 534 

 e'. Second lower molar about one half greater 

 than the first in antero-posterior diameter ; 

 head-streaks broad ; forearm l"-4 ^. Ch. pusillum, p. 636. 



II. Inc. 2, m. g;:^ ; a white line along the spine. 

 «. Four broad very distinct streaks on the head ; 



forearm l"-4 4. C%. bidens, p. 535. 



1. Chiroderma salvini. 



Head, ears, and nose-leaf like those of Artiheus perspidllatus, 

 but the muzzle is proportionately narrower in front ; the distance 

 between the eyes is considerably greater than the distance of the eye 

 from the end of the muzzle ; eyes large : ears equal in length to the 

 distance of the anterior termination of the outer margin of the ear- 

 conch from the extremity of the muzzle ; horseshoe-shaped nose-leaf 

 nearly circular, free in front and laterally, with a slight convexity 

 forming a small projection from the centre of its anterior margin. 



The body is short in proportion to the length of the forearm and 

 extent of the wings. Wing-membrane extending to the metatarsus ; 

 interfemoral weU developed, its posterior margin but slightly con- 

 cave, the centre of the membrane extending as far back as a line 

 drawn between the ankles ; feet smaU. 



* This opening between the nasal bones probably becomes closed in some 

 species when the animal is full-grown, for in a specimen in the Leyden Museum 

 no cleft was found on examination by Dr. Peters (MB. Akad. Berl. 1866, p. 393). 



