miller] seventy new MALAYAN MAMMALS 6 1 



Measurements. — External measurements of type: head and body, 

 215 ; tibia, 55 ; foot, 45 (36) ; forearm, 115 ; thumb, 62 (52) ; second 

 digit, 105 (103) ; third digit, 257; fourth digit, 202; fifth digit, 177; 

 ear from meatus, 23; ear from crown, 21 ; width of ear, 15. 



Cranial measurements of type : greatest length, 64 ; basal length, 

 60; basilar length, 56; median palatal length, 35; palatal breadth 

 between anterior molars, 10; zygomatic breadth, 33; least inter- 

 orbital breadth in front of postorbital processes, 8.4; least inter- 

 orbital breadth behind postorbital processes, 8 ; distance between tips 

 of postorbital processes, 24 ; greatest breadth of braincase above roots 

 of zygomata, 23 ; greatest depth of braincase, 18 ; occipital depth, 12 ; 

 depth of rostrum at middle of diastema, 6.8 ; maxillary toothrow 

 (exclusive of incisors), 23.4; crown of first upper molar, 4.8X3; 

 mandible, 49.4; mandibular toothrow (exclusive of incisors), 27; 

 crown of first lower molar, 4.4X2.6. 



Specimens examined. — Fifteen (seven skins), all from South Twin 

 Island. 



Remarks. — The series shows little variation in color. Such as 

 there is chiefly involves the greater or less amount of blackish 

 suffusion on the neck, and the strength of the yellowish tinge in the 

 gray of the head. In one female (No. 104,466) the sides of the 

 abdomen are strongly washed with silvery gray. 



MACACUS PAGENSIS sp. nov. 



(Plate XI, figure 2; Plate XII, figure 2; Plate XIII, figure i) 

 Type.—AdnXt female (skin and skull), No. 121,653, United States 

 National Museum. Collected on South Pagi Island, Sumatra, No- 

 vember 17, 1902, by Dr. W. L. Abbott. Original number, 2053. 



Characters. — Like Macacns ncmestrimis but much smaller. Gen- 

 eral color darker than in the related species, but sides of neck light 

 yellowish brown, in strong contrast with dorsal surface. 



p^ir_ — The fur does not differ essentially from that of an adult 

 female Sumatran specimen, except that the tail is much more thinly 

 haired, and there are some peculiarities in the growth of the hair 

 on head. The tail is so sparsely haired that the skin is nowhere con- 

 cealed except at extreme base, while in M. nemestrinus no skin can 

 be seen. This may be a seasonal character, but the fact that the 

 scattered hairs on the tail of Macacns pagensis are all of the same 

 light brown color, those of the upper surface showing no suggestion 

 of the blackish dorsal stripe of the related animal, makes it seem 

 probable that the tail is always essentially as in the type. On fore- 

 head the hairs from a line joining anterior bases of ears all grow 



