miller] seventy new MALAYAN MAMMALS 5 



•burnt-umber slightly darker than in the type of R. notahilis. Along 

 middle of back there is a faint drab gloss, and the light annulations 

 of the hairs are smaller and more sharply defined than in the related 

 species. Back without the sprinkling of whitish hairs present in 

 the type of notahilis. Underparts and inner surface of limbs cream- 

 buff, tinged with brownish yellow, particularly on front legs. The 

 cream-buff area on the legs is narrower than in the type of Ratufa 

 notahilis. The pale area of underparts and legs is everywhere sepa- 

 rated from the dark adjoining regions by a distinct edging of light 

 tawny-ochraceous. This is present in the type of R. notahilis, but 

 much less distinct. In both species the pale flank spot is indicated 

 by an interruption of this edging. Cheeks, feet, and muzzle whitish. 

 Tail concolor with back above, at sides, and tip, dull whitish gray 

 along middle beneath. The four specimens are very uniform in 

 color characters except for the usual effects of bleaching, which are 

 noticeable in two of the skins. 



Skull and teeth. — The skull and teeth are readily distinguishable 

 from those of Ratufa notahilis by their smaller size. The general 

 form of the skull is throughout less broad and robust than in the 

 related species, but this difference is most noticeable in the region 

 of the anterior zygomatic roots, which flare much less abruptly and 

 widely than in the larger animal. 



Measurements. — External measurements of type: total length, 

 780; head and body, 360; tail vertebrse, 420; hind foot, 76 (70) ; ear 

 from meatus, 26.6 ; ear from crown, 16. 



Cranial measurements of type : greatest length, 64.4 (68) ;^ basal 

 length, 55 (58) ; basilar length, 51.4 (55) ; length of nasals, 21.4 

 (22) ; diastema, 15 (14.6) ; least interorbital breadth, 25.4 (27.4) ; 

 breadth of braincase above roots of zygomata, 28 (29.4) ; zygomatic 

 breadth, 39 (44) ; mandible, 41 (45) ; maxillary toothrow (alveoli), 

 12 (13) ; mandibular toothrow (alveoli), 12.6 (15). 



Specimens examined. — Four, all from the type locality. 



RATUFA CONSPICUA sp. nov. 



Type. — Adult male (skin and skull). No. 115,528, United States 

 National Museum. Collected on Pulo Bintang, Rhio Archipelago, 

 August 19, 1902, by Dr. W. L. Abbott. Original number, 1900. 



Characters. — In general similar to Ratufa notahilis and R. insignis, 

 but skull not so large as in either of these, and pale color of under- 

 parts abri'.ptly contrasted with dark brown of sides. 



* Measurements in parenthesis are those of the type of Ratufa notahilis, a 

 young adult male. 



