1907.] MAMMALS FROM ANNAM. 7 



yellowish i-atlier than rufaus, except under the chin and at the 

 root of the tail. The hairs of the tail, more especially under- 

 neath and at the sides, have long rufous tips. 



Dimensions (of Nha-trang specimen, ad. 5 in flesh). Head and 

 body 364 mm. ; tail 284 ; ear 28. 



Skull. Greatest length 78 mm. ; basal length 75 ; zygomatic 

 breadth 39 ; palatal length 41 ; greatest diameter of carnassial 8. 



Helictis pierrei Bonh. 



Helictis jnerrei Bonhote, Ann. & Mag. JS'at. Hist. ser. 7, vol. xii. 

 p. 592 (1903). 



a. Imm. Nha-trang, Annam. 



h. Imm. skull only. 



The single skin and skull are too immature to show the dis- 

 tinctive characters to any mai-ked extent. 



TUPAIA CONCOLOR Bonli. 



Abstr. P. Z. S. 1907, p. 2 (Jan. 22, 1907). 



Similar in geneiul colouring to Tupaia helangeri. The whole 

 of the upper parts are of a uniform grizzled greyish-green, each 

 hair being dark at its base and having one or more buff annulations 

 and a dark tip. One of the most distinctive features is the absence 

 of the neck-stripe, so universal among the other species of this 

 genus. An extremely faint trace of it only is to be made out on 

 the shoulders, but so faint is it that unless special search be 

 made it is liable to be overlooked. The tail, which is mai-kedly 

 distichous, is concolorous with the upper parts, and extremely 

 thick and bushy. The under parts are somewhat sparsely clothed 

 with hair ; the chin, throat, and breast are imiformly yellow, 

 while on the other portions the hairs are annulated as on the 

 upper parts. The bases of the hairs on the under side of the tail 

 are light. 



Skull. In its general character resembles that of T. helangeri ; it 

 is, however, slightly larger and with a longer and narrower snout, 

 in othei- respects it does not show any marked features. 



Dimensions of type (fi'om skin). Head and body 220 mm, ; 

 tail 140; ear 15 ; hind foot 45. 



Skull. Greatest length 54 mm. ; basal length 47 ; zygomatic 

 breadth 29 ; palatal length 27 ; breadth of skull immediately 

 behind postorbital processes 17. 



Type. B.M. 6.11.6.3. S ad. Collected by Dr. Vassal, 22nd 

 March, 1906. 



Hab. Annam. 



Although very closely allied to Titpaia helangeri this species 

 may easily be distinguished by its larger size, much thicker tail, 

 and the absence of the light neck-stripe. Two specimens agreeing 

 in all respects were brought back by Dr. Vassal. Tupaia chinensis, 

 described by Dr. Anderson from Yunnan and which is found in 

 Siam, is rathei- smaller than T. helangeri and consequently quite 

 distinct from the present form. 



