394 MR. J, L, BONHOTE ON THE [ Nov. 28, 
Key to the larger Chinese Species of Mus. 
(Hind-foot measurement of the smallest, 26 mm.). 
A. Colour of under parts sharply divided from that of upper Pah ts. 
a. Size large. Hind foot 57 mm. ........ Serene . WM, edwardsi. 
b. Smaller. Hind foot not exceeding 36 mm. 
Gye Meet swihites 5. sce ee Ree cee een et rere s Sac AP Re PCO AGT: 
6;. Feet coloured. 
a>. General colour dull brown (clay, Ridgw.). Hind 
footrSQ amis F ptr eee aces ck bcs chamdo teense M. confucianus. 
6. General colour brighter ee nugus R.). 
Hind foot 30 mm. seen cvoceone Lhe PONG): 
Smaller and paler, Hind foot 27mm. ........... Me ling. 
B. Colour of under parts not sharply divided from that of upper 
parts. 
a. Tail bicolor. Hands white. 
a,- Tail clothed with minute sete. Hind foot 33 mm.... I. griseipectus. 
bj. ees clothed with hairs. 
. Large. Hind foot 36 mm.. sasigeeacos tte . M. norvegicus. 
Smaller. Hind foot 30 mm. seein . M. humiliatus. 
b. eT fol Hands brown with white margins. 
hed of under parts with slate-coloured bases. 
. Size large. Hind foot 31 mm.. bare . WM. flavipectus. 
i. Smaller. Hind foot 26 mm.. M. losea. 
. Fur of under Dai white throughout. “Hind foot 
60 mm.. Slsen nintgbopess Atacstene anatee tia tees . MW. latouchet. 
Mus muscuuus L. 
Mus musculus L., Swinhoe, P. Z. 8. 1864, p. 382, and 1870, 
p. 637. 
The common House-Mouse does not seem to be very abundant 
in China, though there are several specimens in the Museum from 
widely separated localities in that country. 
A description of so well known a species would be superfluous,. 
and there is no other mouse with which it could well be 
confused. 
Dimensions (from spirit-specimen). Head and body 77 mm.; 
tail 80; hind foot 17. 
Micromys Dehne. 
Micromys (type of genus Micromys agilis, Dehne, Hofléssnitz, 
1841), revived by O, Thomas, Ann. Mag, N. H. ser. 7, vol. xv. p. 491 
(May 1905). 
Mr. Thomas has used Jdicromys as the generic name of: several 
species of the smaller mice hitherto included under the universal 
genus “ Maus.” The Chinese forms belonging to it are :— 
Mus sylvaticus chevrieri. 
3 draco. 
Mus minutus pygmeus. 
Mus agrarius manchuricus. 
A _ ningpoensis, 
The distinctive character of this genus is that the posterior 
