752 PROCEEDINGS OF THE NATIONAL MUSEUM. 



SUS BABI, new species. 

 Plates LX and LXI. 



7^,/^,., __ Adult male (skin and skull), No. 114283, U.S.N.M. Col- 

 lected on Pulo Babi,^' west Sumatra, January 14, 1902, by Dr. W. L. 

 Abbott. Original number, 1413. 



Geo(/raphic distribution. — Pulo Babi and Pulo Tuangku, west 

 Sumatra. 



Characters. — About the size of S'us vittatus., but skull noticeably 

 broader in proportion to its length, the width of palate including last 

 molars distinctly greater than half distance from back of third molar 

 to front of canine in males or to third incisor in females. (Plate LX 

 tig. 1, plate LXI, tig. 1.) Combined length of last two upper molars 

 about 47 nun.; greatest breadth of m^ noticeably less than least width 

 of palate at front of this tooth. A distinct though short diastema 

 between canine and first premolar. Color very dark. 



Measurements. — For measurements see table, pages 755 and 756. 



Specimens examined. — Five, three (2 skins) from Pulo Babi and two 

 from Pulo Tuangku. 



Remarlxii. — In the two skins from Pulo Babi the hair is very dark, 

 giving the animal a uniform blackish appearance throughout, except 

 where the yellowish skin shows through at the surface. In the type 

 the bristles of the mane and forehead are rather noticeably lightened 

 by wood-brown annulations, and similar though shorter rings produce 

 an evident light band across muzzle about halfway between eye and 

 snout; throat with a few scattered light tips and annulations, but these 

 not numerous enough to form stripes behind angles of mouth. In the 

 other skin (female, No. 114282) even this slight degree of light mark- 

 ing is absent, and the entire animal is practically black. One of the 

 skins from Pulo Tuangku (female. No. 114415) is nearly as dark as 

 the type, but the other (male, No. 114416) is of the usual grizzled style 

 of coloration. The skulls from the two islands show no variations 

 worthy of note. Two females from Engano — one (No. 140959) very 

 old, the other (No. 140958) inunature — resemble Sus hahi, though I do 

 not feel convinced that they should be considered the same. Upper 

 length of skull of adult, 298; parietal constriction, 29; nasal breadth, 

 33; last upper molar, 27.6 by 17.6. In both specimens the audital 

 bullae are somewhat enlarged. 



" This island lies about halfway between Simalur and the outermost of the Banjak 

 group, Pulo Bangkaru. It is a small island not shown on ordinary maps, and must 

 be carefully distinguished from Simalur, often called Pulo Babi ("Pig Island"). 



