1905. ] MAMMALS OF GHINA,. 389 
In external appearance it resembles Mus eremoriventer Mill. very 
closely; the bicoloured tail, however, serves as an easily dis- 
tinguishable feature, but that it is very nearly related is shown 
by the tendeney in the young and even some adults to the uni- 
colorous tail. The immature pelage is, as a rule, soft and 
destitute of bristles, and resembles in colour true J/. confucianus. 
This species seems to be most abundant at Ching Fen Ling, 
but it also occurs at Kuatun. 
Mus LAroucHet Thos. 
Mus latouchei Thos. Ann. & Mag. N. H. ser. 6, vol. xx. p. 113 
189%); 1d. BaZSi 1898; para; “Bonh. Fasc. Mal: ay., Zoology, 
vol. i. p. 84 (1908). 
General colour of the upper parts clear grizzled grey. Fur 
light at its base, with a greyish-brown Sulote uma portion and 
white tip, thickly intermixed with soft spines similar in colour 
but lacking the white tip. Under parts pure white, the hairs 
being white to their bases. Hands and feet white along their 
margins and on the digits, brownish in the centre. Tail dark, 
covered with short hairs, white at the tip im some individuals. 
Ears large, rounded and almost naked. 
The skull most nearly resembles that of Mus bowersi, from 
which it differs, according to Mr. Thomas, in haying the line of 
the fronto-premaxillary and fronto-nasal suture running straight 
from side to side, instead of being bowed backwards, and the supra- 
orbital rims more developed. The incisors are broad and pale 
yellow. 
Dimensions (of type from skin), Head and body 310 mm. ; 
tail 290; hind foot 60. 
Skull. Greatest length 58 mm.; basilar length 48; palatilar 
length 28; diastema 17; length of incisive foramina 11; length 
of nasals 23°5; interorbital breadth 8; breadth of brain-case 22 ; 
length of molar series 10. 
Habitat. The type came from Kuatun, as do all the series of 
specimens that have hitherto been obtained, although Mr. Thomas 
mentions a specimen in the Paris Museum from Pere David. 
It is evidently a scarce Rat, and little seems to be known of its 
habits, but according to Mr. La Touche it inhabits the forest 
country. Its uniform grizzled-grey colour and large size are 
sufficient to distinguish it from all other Chinese rats. 
Mus ruAvirecrus A. M.-E. 
Mus ? Swinhoe, P. Z. 8. 1864, p. 382. no, 26. 
Mus canna Swinhoe, P. Z.8. 1870, p. 636. 
Mus alexandrinus Geoftr., Swinhoe, P. Z. 8. 1870, p. 635. 
Mus flavipectus A. M.-E, Nouv. Arch. du Mus. vol. vii. p. 93 
(1871); id. Rech. Mamm. p. 289, pl. 42. fig. 1 (1874); Bonh. 
Fase. Malay. ., Zoology, vol. i. pp. 35 & 37. 
Mus owangthome A. M.-K. Nouv. Arch. du Mus, vol, vii. p. 93 
(1871); id. Rech. Mamm. p. 290, pl. 40. fig. 3 (1874). 
