MAMMALS. 



7 



Skull. 



The skull in its general shape is not unlike that of Sc. tenuis, but 

 (lifters in its very much larger size. 



Dimensions of type in the flesh. — Head and body, 155 mm. ; tail, 

 104 mm. ; hind-foot, 36 mm. ; ear; 14 mm. 



Corresponding dimensions of typical tenuis from lower down on 

 the same mountain: Head and body, 133 mm. ; tail, 115 mm.; hind- 

 foot, 29 mm. ; ear, 13 mm. 



f:™itp«t R««il«r 7j y£°- Length Length of Length 

 wS, matiC of palate to of molar 



lengtn. luigtn. ureadth> liasa i s . henselion. series. 



8. tenuis, 



S.Johor 38. ... 30 ... 23 ... 11 ... 15 ... 7 



S. tahan, 



type ... 43.5 ... 36 ... 26 ... 12 ... 17 ... 8 

 Habitat. — Gunong Tahan, 5,300 ft. 



Type. — No. 44, m.ad., collected by Mr. Robinson on the 9th 

 July, 1905: 



The collection contains two other specimens, -one of which, a female, 

 was got at the same place on the 1st of July, while the other, a male, 

 was shot about 2,000 ft. lower down the same mountain on the 1st 

 of June. 



Although extremely like Sc. tenuis in external appearance, its 

 larger size, darker colour and annulated tail will enable it to be easily 

 recognised. 



18. SCIURUS CASTANEOVENTRIS GRISEOPECTUS, Blyth. 

 Sciurus griseopectus, Blyth (nee Gray) ; J.A.S.B., xvi., p. 873 

 (1847). 



Sciurus c. griseopectus, Blyth, Bonk., Ann. & May. Nat. Hist. (7), 

 vii., p. 311 (1901). 



a.-o. 8 m., 7 /. Gunong Tahan. 3,300-6,000 ft. June, 1905. 



It is extremely interesting to receive a fine series of this hitherto 

 little-known form. Although originally described from Assam, there 

 can be little doubt that it is far more abundant in the mountains of 

 the Peninsula. 



Mr. Robinson, on my writing for further information on this 

 species, replies: "A squirrel of this type is very common above 

 4,000 ft. on all the mountains of the Peninsula, but, on the central 

 range and on the western side, it seems to lack the grizzled median 

 ventral stripe and to be referable to the typical Sc. erythraeus." 



So far only two examples of Sc. erythraeus (which is a mountain 

 species ranging from Bhutan through Assam and Manipur to Upper 

 Burmah) have been recorded from the Peninsula : one brought home 

 by the " Skeat " Expedition from Gunong Inas, Perak ; and the other 

 by Messrs. Robinson and Annandale from the Semangko Pass on the 

 borders of Selangor and Pahang. 



In my paper quoted above I enter fully into my reasons for 

 considering the present form as being a geographical race of tho 



