NO. :4ti6. ' NOTES ON MALAYAN PiaS—MiLIJ<:iL 758 



SUS NATUNENSIS Miller. 



1901. /S'm.s' natnnciiaiti Millek, I'roc. Washington Aciid. Sci., Ill, p. 117, March 

 20, 1901. 



Type localltij. — Pulo Laut, North Natuiui Islands. 



Geoyraphic dlstt'lhatloii. — The North Natuua Ishmds. 



Characters. — Closely resembling Sushahl^ but with rostral portion of 

 skull more shortened and broadened; width of palate, including- last 

 molars, about half as great as distance from l)ack of third molar to 

 front of third incisor in female (male not known); no diastema between 

 canine and tirst premolar; color not unusually dark. 



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



Specimens examined. — Three, the type and a young female {No. 

 10i857, skull only) from Pulo Laut, and an adult female (No. 105855) 

 from Pulo Lingung. 



Remarks. — The Natuna pig is readily distinguishable from Sus vittatns 

 by its shorter, broader skull (upper length in adult females about 

 20 mm. less than in the Sumatran animal, but zygomatic breadth fully 

 as great or slightly more, and combined breadth of nasals decidedly 

 greater). It more closely resembles the geographically distant Sus hahl, 

 but differs in its broader, more elevated brain case; parietal constric- 

 tion somewhat wider than nasals, instead of decidedly narrower, as in 

 Sus habi. The toothrow is more crowded than in Siis bah!., as shown 

 by the anterior premolars of the upper jaw. 



sus MIMUS, new species. 



Type.~A.di\x\t male (skin and skull). No. 114178, U.S.N. M. Col- 

 lected on Simalur Island,^ West Sumatra, November 26, 1901, by Dr. 

 W. L. Abbott. Original number, 1353. 



Geographic distribution. — Simalur Island. 



CharaGters.—]J)k.^ Suihahi, but much smaller; upper length of skull 

 about 280 mm. in males, 265 mm. in females. Greatest width of third 

 upper molar about equal to least width of palate at front of this tooth. 

 A short but evident diastema between canine and first premolar in 

 female, but not in male. Color, very dark, as in Sus hiln. 



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



Specimens examined. — Five, all from Simalur Island. 



Remarks. —TW\ii appears to be a well-characterized dwarf species 

 related to the larger animal of Pulo Babi and the Banjak Islands, and 

 with a similarly broadened skull. It also shares the uniform blackish 

 coloration of the related form. 



«This is the northernmost of the large islands off the west coast of Sumatra. It is 

 sometimes known as the Pulo Bal)i (see under Sus babi, p. 752). 

 Proc. N. M. vol. XXX— 06 48 



