1902.] NATURAL SCIENCES OF PHILADELPHIA. 145 



Skull and Teeth. — The skull and teeth are similar to those of 

 Tragultis canescens. The supposed peculiarities* of the first speci- 

 men obtained by Dr. Abbott prove to be merely the result of senile 

 changes. 



Measurements. — External measurements of type: Total length, 

 625 ; head and body, 545 ; tail vertebrae, 80 ; hind foot, 1 42 ; 

 hind foot without hoofs, 125. Weight, 3.4 kg. Average of five 

 specimens from the type locality: Total length, 654 (625-670); 

 head and body, 566 (545-580); tail vertebrae, 88 (80-95); hind 

 foot, 141 (140-142); hind foot without hoofs, 126 (125-127); 

 weight, 3.7 (3.1-4.3). 



Specimens Examined. — Ten (one in alcohol), all from Liuga 

 Island. 



Remarks. — Examination of the extensive series of Tragulus iu 

 Dr. Abbott's second Linga collection convinces me that I was wrong 

 in referring the specimen obtained during his first visit to the island 

 to T. napu.^ The reasons are briefly as follows: The animal 

 described and figured by F. Cuvier was much more gray than the 

 Linga species ; the outermost of the white throat stripes was con- 

 siderably longer, extending " beyond the cheeks;" and both of the 

 lateral white stripes were bordered with black. The throat pattern 

 is now known to be so constant in each local form of this group 

 that the very striking characters mentioned by Cuvier cannot be 

 regarded as due to mere individual variation. Finally, the marked 

 differences between the napu of Linga and that of the neighboring 

 island of Sinkep furnish additional ground for the belief that a 

 third form occurs in Sumatra. 

 Tragulus nigriooUis sp. uov. 



2\/pe.— Adult male (skin and skull), No. 113,121 United 

 States National Museum. Collected on Sinkep Island, South China 

 Sea, September 6, 1901, by Dr, W. L. Abbott. Original num- 

 ber 1,292. 



Characters. — Similar to Tragulus pretiosus but slightly larger; 

 color of body lighter, but neck and dark throat markings black, 

 inconspicuoasly speckled with brown. 



Color. — General color as in Tragulus pretiostis, but ground tint 

 everywhere a shade less yellow, that of the sides scarcely darker 



^ See Proc. Biol. Soc. Washington, XIII, p. 180, December 31, 1900. 

 'P/-OC. Washington Acad. Set., II, p. 227, August 30, 1!)0J. 



10 



