746 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxx. 



isolated enamel spaces, while in Stisjubatus there are only from four 

 to six. Similarly in the last lower molar of the Indian boar there are 

 from six to nine small cusps (represented by enamel spaces in worn 

 teeth) behind the third transverse ridge, while in the Malayan animal 

 there are only from three to live. In general form the skulls of the 

 two species do not differ appreciably; at least, no definite characters 

 are shown by the specimens compared. 



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



Specimens examined. — Thirteen, from the following localities: 

 Trong, Lower Siam, 2 (1 skin); Victoria Island, opposite Victoria 

 Point, Tenasserim, 1; Boyces Point, Tenasserim, 3 (3 skins); Tanjong 

 Badak, Tenasserim, 4; Champang, Tenasserim, 2; Bok Pyin, Tenas- 

 serim, 1. 



Remarks. — The series of skins shows considerable variation in the 

 amount of light tipping to the hairs. In the majority of cases a dull, 

 uniform grizzle is produced; but some skins are nearl}- black, while in 

 others the light brown strongly predominates. The mane is alwa3's 

 well developed and the ear is never distinctly fringed. The light 

 streak extending back from angle of mouth is invariably present, 

 though in none of the skins is it as well developed as in some speci- 

 mens of Sits vittatns. 



SUS JUBATULUS, new species. 



7)//>^— Adult male (skin and skull). No. 123918, U.S.N.M. Col- 

 lected on Pulo Teratau (or Trotto), off' west coast of Malay Peninsula, 

 November 11, 11)03, by Dr. W. L. Abbott. Original number, 2859. 



Geograpliic dlxtrihufton. — Pulo Teratau, and perhaps other islands 

 off' the west coast of the Mala}^ Peninsula. 



Characters. — Like Si/sj>/h(ttit.s^ l)ut not as large; head and body of 

 adult mule about 1250 mm.; upper length of skull of adult male about 

 320 mm. Externally the animal closely resembles Susjuhatus, except 

 for the diff'erence in size. ' The skull of the type has the brain case 

 relatively l)i'oader and shorter than in any of the specimens of Sus 

 jubatuK., but this may prove to be an individual character. Otherwise 

 it shows no peculiarities worth}^ of note. Posterior molar both aboV' e 

 and below (the only teeth in which the enamel pattern is not worn 

 away), with cusps ])ehind last transverse ridge more complicated than 

 usual in Sus jiihattis., but in no way approaching the conditions found 

 in Sus cristatus. 



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



Specimens exanilned. — One, the type. 



Remarks. — Two specimens from Kisseraing Island, Mergui Archi- 

 pelago (young female. No. 124:20(), February 3, 1904, and adult female. 

 No. 124207, February 4, 1904), also represent a dwarf form of the 



