Allen.] [Dec. 6, 



rubbed), and scarcely any on the dorsum of the metacarpal bone of the 

 thumb. The distribution of the hair on the wing membrane is as in C. 

 brevicauda.* 



The general form of the auricle as in C. brevicauda, but is proportion- 

 ately longer. The outer border is more emarginate. When the auricle 

 is laid on the head, it reaches a point as far as the end of the muzzle. The 

 tragus is obscurely acuminate ; the inner border, therefore, not straight, 

 but the apical half abruptly narrowed. The outer border crenulate, 

 rather than pectinate. The basal lobe and the process above it well de- 

 veloped. The nose-leaf is more delicate than in C. brevicauda. The height 

 is 7 mm.; the breadth 4| mm. The lower border is much more distinct 

 than in C. brevicauda. The nostrils are rounded, well defined, and not 

 continuous with a concavity on the outer border. f The warts on the 

 mentum are arranged in three obscurely disposed rows, the middle one 

 being the larger, but none of them are elongate. The tail reaches to a 

 point opposite the knee. 



Skull. The general proportions of the skull are the same in the two species. 

 The brain case at the procephalon is inflated and the temporal crest does not 

 extend over the inflated part. Hence the impressions for the temporal 

 muscles are not defined on the frontal bone. The upper border of the 

 anterior na?al aperture is on a line with the canine tooth. The distance 

 between the lachrymal ridges is greater than between the lachrymal 

 ridge of one side and the corresponding central incisor. The distance from 

 the last maxillary molar to the posterior limit of the nasal chamber is less 

 than the distance from the point last named to the end of the long endo- 

 pterygoids. The palatal rugae are more trenchant, curved and. wider 

 apart opposite the premolars, than is the case with C. brevicauda. 



Teeth. The number of the teeth is the same as in C. brevicauda, viz.: 



2 1 2 3 V2 _16 o 



~T~a ~ X2 ~16- 



The maxillary central incisors touch their entire lengths.:}: The lateral 



* The fur of C. brevicauda is described as follows : 



Above, moderately long only. The base is plumbeous, the tip brown, and the interme- 

 diate part pallid almost white. Below, the fur is short, plumbeous at basal half, and of 

 the peculiar mouse gray so often seen in Phyllostomidae. G. E. Dobson (Cat. Chir. Br. 

 Mus., 1878) describes the fur as brown above and beneath. None of the nine specimens 

 examined were so marked. The brown aspect of the animal as seen in spirit is much 

 more apparent than when dried. The nose-leaf is covered with fine short hairs on both 

 sides. The back of the thumb is densely covered with short hair in C. brevicauda. 



t The nostrils are oval in outline, are not separable from the outline of the nose-leaf 

 above, and are continuous with a concavity (as one speaks of a mouth of a pitcher being 

 concave), on the outer border. The peculiarity just named is best seen by holding the 

 specimen so as to keep the vertex of the head upward, the observer looking downward 

 from the tip to the base of the nose-leaf. 



J-G. E. Dobson (Cat. Chir. Br. Mus., 1878) gives this as a character of C. brevicauda. 

 From my examinations, I cannot agree with this writer. The teeth exhibit a A-shaped 

 space between the cutting edges. 



