FASCICULI MALAY FUSES 
27 
As pointed out by Mr. Miller, the species bears a very close resemblance 
to Mus rajah, Thos., from which it only differs in external appearance by its 
smaller size. The skull, however, apart from its size, has a much more slender 
rostrum. 
47. Mus bukit, Bonhote. 
(Plate IV, fig 2). 
Mus bukit, Bonhote^ Ann. Mag. Nat. Hist. (7) xi, p. 125 (1903). 
Similar in appearance to Mus cremoriv enter. Miller, and Mus kina, Bonh., 
but larger than either. 
General colour of a uniform pale ochreous, intermixed with short black 
hairs, which are nowhere so prominent as to unduly predominate. Sides paler 
and greyer, caused by an absence of black hairs and general shortness of fur, 
which enables the light-coloured spines to show through. Under parts yellowish- 
white, sharply defined from the colour of the upper parts. Feet with dark-brown 
centres and light toes and margins. Tail rather longer than the head and body, 
markedly bicolor and scantily clad with hairs. 
Skull. Intermediate between those of M. rapit and M. kina. In size it 
approaches most nearly to that of M. rapit, but the muzzle is considerably 
shorter and broader in proportion, and the auditory bullae are larger. The 
anterior zygoma root is very large and solid, greatly exceeding in size that of 
M. rapit. The nostrils are long and taper greatly towards their posterior end. 
The supraorbital ridges are well marked, and extend right backwards to the 
posterior margin of the parietals. The bullae are large and well developed, but 
lie rather flatter than in M. kina. 
Dimensions of the type (measured in the flesh): — Head and body,i2i mm.; 
Tail, 148 mm. ; Hind foot, 24*5 mm. ; Ear, 17 mm. 
Skull. Greatest length, 37 mm. ; Basal length, 28 mm.; Palatal length, 
16 mm. ; Diastema, 9*5 mm. ; Length of incisive foramina, 6 mm. ; Length 
of nasals, 15 mm. ; Zygomatic breadth, 18 mm. ; Interorbital breadth, 6 mm.; 
Greatest breadth of brain case, 15 mm. ; Length of molar series, 6*5 mm. 
Habitat. Bukit Besar, Nawngchik, 2500'. 
Yype. Adult male, collected loth May, 1901. Original number, ii. 
The series brought home by Messrs. Robinson and Annandale, con- 
sisting of two males and three females, is very uniform, and presents no 
individual variation, whilst, at the same time, they exactly agree with several 
specimens sent home from Siam by Mr. Lyle, and recorded by me as Mus 
jerdonib I have thought it well to name this species, though subsequent 
investigations may prove it to be a synonym of M. jerdoni. 
i . P . Z . S ., 1902, p. 39. 
