1905. | MAMMALS OF CHINA. 387 
touch, as stated by M. Milne-Edwards in the original description. 
Under parts pure milk-white, sharply contrasted with that of the 
upper parts. Feet whitish, but the colour of the upper parts 
runs down the centre of their upper surface to a varying extent. 
Tail moderately long and bicoloured, clothed with short hairs; its 
terminal portion is usually, but not invariably white. The skull 
is that of a typical Mus of the jerdoni group, being long and 
narrow, somewhat flattened and with small bull. 
Dimensions (in flesh). Head and body 164 mm.; tail 192; 
hind foot 39; ear 18. 
Skull (average dimensions). Greatest length 36 mm.; basilar 
length 27:5; palatal length 15; diastema 9°75; incisive fora- 
mina 6°6; length of nasals 13°6; zygomatic breadth 16; inter- 
orbital breadth 6; greatest breadth of brain-case 14; length of 
molar series (alveol1) 6. 
Habitat. The type was received from Pére David ‘from the 
mountains of Moupin, in the province of Szechuen, W. China. 
There are also specimens in the Museum from H. Kiangsi, from 
Kuatun and Ching Fen Ling in N.W. Fokien, and from Nankin, 
all forming a very uniform series showing hardly any variation. 
It is as a rule generally found in the mountainous country, 
occasionally entering the houses in winter; and it may be easily 
recognised, for its dull brown colour and pure white under parts, 
sharply divided from the colour of the back, form a combination 
of characters found in no other Rat from that part of the world. 
Some of the spiny individuals very closely resemble Mus nivet- 
venter from the Himalayas, of which it is probably the Chinese 
representative. 
Mus HUANG. 
Mus confucianus A.M.-E., O. Thos. P.Z.8. 1898, p. 773 (partim). 
Mus huang Bonh. Abstr. P. Z.8. No. 23, p. 19, Dec. 5, 1905. 
Size as in the last-mentioned species. General colour rufous 
(ochraceous-rufous, Ridgw.), darker along the dorsal area. The 
underfur is slate-coloured at its base with a rufous tip, thickly 
intermixed, especially on the back, with black bristles or spines. 
On the flanks the bristles become much less numerous and many 
of them have rufous tips. The colour of the head resembles that 
of the upper parts. The feet are whitish, with the rufous colour 
running down the centre of their upper surface. Under parts 
pure white, the line of demarcation being sharply defined. Tail 
rather longer than the head and body, clothed with short hairs 
and bicoloration. Ears moderately long and sparsely covered 
with very close, short, dark brown hairs. 
The skull very closely resembles that of MW. confucianus in size 
and general appearance, but may be recognised by the supra- 
orbital ridges being continued right across to the posterior margin 
of the parietal. 
Dimensions (of type from skin). Head and body 155 mm.; 
tail 188; hind foot 30; ear (approx.) 16. 
