294 Mr. J. L. Bonliote on Three new 



General colour on the back black, strongly gn'zzlel with 

 rufous, which latter colour predominates, but is slightly 

 yellower in tint on the sides. Head and face as the hack, 

 lighter on the cheeks. Nape-stripe very well defined and 

 nearly pure black. Sides of neck and fore feet rufous, hind 

 feet similar in colour to the back. Well-defined orange 

 markings start from inside the fore legs and run backwards 

 and inwards to join in the middle line, thence passing back- 

 wards along the median line to the vent, where it widens out 

 into a broad irregular transverse band. There is a further 

 narrow line of this colour bordering the colour of the upper 

 parts and bordering both sides of the white on the inner side of 

 the thighs. The median ventral stripe is also carried forward 

 to meet the transverse stripe on the neck. The markings on 

 the neck are of the usual shape and are orange-rufous thickly 

 grizzled with black. The remainder of the underparts are 

 pure white. The tail, which is longer than in T. k. affinis, 

 is similar in colour to the rest of the body, viz., grizzled 

 rufous above and white below. 



The skull is similar but larger than tliat of T. k. affinis, 

 the most noticeable point of difference being in the bulla?, 

 which are very much swollen and rounded and nearly twice 

 as large; as a result of this the constriction of tlie anterior 

 portion of the basioccipital, noticed when dealing with the 

 last species, has gone a stage further and become still more 

 constricted, so that the whole bone is ratlier wedge-shaped, 

 with the sharp edge downwards, leaving a fairly deep groove 

 on either side between the wedge and the bullas. Another 

 point of difference is in the anterior margin of the pra^maxilias, 

 which bends abruptly downwards from the anterior end of the 

 nasals, whereas in T. k. affinis and T. k. Pierrei it goes down 

 in a more gradual slope. 



Dimensions (of type) from dried skin : — Head and bod}' 

 472 millim.; tail 75; hind tarsus 98. 



Skull. — Greatest length 98 millim. ; basal length 86 ; 

 palate length 62 ; length of nasals 29 ; zygomatic breadth 42 ; 

 length of maxillary tooth-row o2 ; length of bullge 20; 

 greatest breadth of bulla3 10. 



Hab. Baram River, Sarawak. 



Ti/pe. Adult female. B.M. 0. 8. 4. 10. Collected and 

 presented by Mr. C. Hose. 



This handsome race is most nearly allied to T. fulviventer, 

 from which it differs chiefly in its larger size and rather paler 

 coloration. T. fulviventer has, in addition, a clear orange 

 transverse band on the throat connecting the apex of the 

 triangle with the colour of the upper parts on either side, 



