488 



PHTLLOSTOMIDiE. 



The following Table exhibits the measurements of the three 

 species described above : — 



Length, head and body 



„ tail 



„ heaxi 



,, ear 



„ tragus 



, , nose-leaf 



Breadth of ditto (of horizontal portion) 

 Length, forearm 



,, thumb 



„ third finger, metacarpal 



„ „ let phalanx 



2nd „ 



3rd , 



„ fourth finger, metacarpal 



,, „ 1st phalanx 



2nd „ 



, , fifth finger, metacarpal 



„ „ 1st phalanx 



2nd „ 



,, tibia 



„ calcaneum 



,, foot 



12. TYLOSTOMA. 



Tylostoma, Gervais, Expid. du Comte de Castelnau, Zoologie, p. 49 

 (1856). 



Muzzle shorter than in Phyllostomn ; horizontal portion of the 

 nose-leaf well developed, free in front and on the sides, vertical part 

 very long, lanceolate ; ears large, separate ; lower lip with a V- 

 ehaped space in front, margined by warts ; wings as in PJiyUostoma ■ 

 wing-membrane extending almost to the base of the toes; inter- 

 femoral very large, extending beyond the feet. 



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



The first upper premolar small, with a straight cusp. 



Range. Brazilian Subregion. 



This genus resembles Phyllostoma in the relative proportion of the 

 bones of the fingers and in the number of the back teeth ; but the 

 muzzle in both the known species is comparatively much shorter, the 

 teeth are differently shaped and more crowded in the jaws, the general 

 structure of the nasal appendages is different, and there is no glan- 

 dular gular sac in either of the sexes. 



In the form and arrangement of the chin-warts, and in the 

 number of the lower incisors, Tylostoma appears to occupy a posi- 

 tion with regard to PhyUostoma similar to that of Lophostoma in 

 Vamjyyrus. 



