394 MR. J. L. BONHOTE ON THE [Nov. 28, 



Key to the larger Chinese Species of Mus. 

 (Hind-foot measurement of tlie smallest, 26 mm.). 



A. Colour of under parts sharply divided from that of upper parts. 



a. Size large. Hind foot 57 mm M.edwardsi. 



h. Smaller. Hind foot not exceeding 36 mm. 



«i. Feet white M. coxingi. 



bi. Feet coloured. 



«o. General colour dull brown (clay, Ridgw.). Hind 



foot 39 mm M. confucianus. 



6o. General colour brighter (ochraceous rufous, R.). 



Hind foot 30 mm. M. liuang. 



Smaller and paler. Hind foot 27 mm 31. linff. 



B. Colour of under parts not sharply divided from that of upper 



parts. 

 a. Tail bicolor. Hands white. 



a . Tail clothed with minute sette. Hind foot 33 mm... M. griseipectus. 

 hx. Tail clothed with hairs. 



a^. Large. Hind foot 36 mm M. norvegicus. 



62- Smaller. Hind foot 30 mm 31. himilicdus. 



h. Tail unicoloured. Hands brown with white margins, 

 ff^. Fur of under parts with slate-coloured bases. 



a-i. Size large. Hind foot 31 mm Il.flavipectus. 



Sg. Smallei'. Hindfoot26mm 31. losea. 



b^. Fur of under parts white throughout. Hind foot 



60 mm 31. latouchei. 



Mus MUSCULUS L. 



3his onusculus L., Swinhoe, P. Z. S. 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. 



MiGromys (type of genus Micromys agilis, Dehne, Hoflossnitz, 

 1841), revived by 0. Thomas, Ann. Mag, N. H. ser. 7, vol. xv. p. 491 

 (May 1905). 



Mr. Thomas has used Micromys as the generic name of several 

 species of the smallei- mice hitherto included under the universal 

 genus " Mus." The Chinese forms belonging to it are : — 



Mus sylvatictis chevrieri. 



,, ,, draco. 



Mus minutus 'pygmceu,s. 

 Mus agrarius manchuricus. 



,, ,, tdngpoensis. 



The distinctive character of this genus is that the posterior 



