1910.] OF SMALL MAMMALS FKUM CIIIXA. 037 



separated from it, the l)elly on the iwei-Jige ileciileilly l)i'o\viiei" 

 than ill Inez. Hesul rather greyer. Hands and feet dull whitish 

 or pale brown, averaging rather dai'kei- than in inez. Tail 

 longer than in that spacies (average of 17 specimens 38 mm. as 

 against 33 mm. in 14 inez), bicolor, dark brown or blackish above, 

 dull whitish below. 



Skull agreeing closely with that of J/, inez, except that the 

 posterior latei-al palatal grooves tend to be deeper and more 

 continuous, and thus to show an approach towards tlie single 

 deep ilepression found on each side in melanoy aster. Bulhe large, 

 larger than in either of the other species. 



Teeth on the whole most like tliose of M. inez, but showing an 

 approach towards those of melanogaster by the junction of several 

 of the enamel spaces, closed in the former, open in the latter. 

 Thus in ?rt^ the normal 2nd and 3rd spaces, separated in inez, 

 ai-e joined as in melanogaster, and in m^^ the two spaces next 

 following the trefoil are frequently joined to each other as in 

 Pityviys. Small extra internal projection on on^ and m' as in 

 M. inez. 



Dimensions of the type, measured in the flesh : — 



Head and body 93 mm. ; tail 39 ; hind foot 16*5 ; ear 10. 



Skull: condylo-basal length 23"6 ram. ; greatest breadth 14-3; 

 nasals 7; interorliital breadth 4; palatilar length 11; diastema 

 G'5 ; palatal foramina 4'7 ; bullpe, diagonal horizontal diameter 7 ; 

 upper molar series 5'6. 



ir«6. oftype. Shang-chou; S.E. Shen-si. 3300'. 



Type. Adult male. B. M. No. 10.5.2.79. Original number 2089. 

 Collected 29 November, 1909. 23 specimens. 



The discovery of this interesting species tends to confirm the 

 I'eference of M. inez to Eothenomys, about which I had some 

 doubt. For while M. melanogaster, the type of Eothenomys, has 

 nearly all its cement-spaces communicating with each othei', ami 

 M. inez has them nearly all closed and separate, the present form 

 differs from 2[. inez exactly in the direction of melanogaster by 

 the opening of several of the spaces, the great majorit}- of tliem 

 laeing still closed. 



MiCROTUS JOHANNES Thos. 



Abstract P. Z. S. 1910, p. 26 (April 2G). 



Near JA. mandarinus, but rather smaller, with much smaller 

 skull. 



General characters very much as in M. mandarinus. Fur 

 soft and fine ; hairs of back about 11-13 mm. in length. General 

 colour above rather bi'owner than Ridgway's wood-l)rown, 

 decidedly paler than in 3/. mandarinus. Under surface dull 

 greyish; the hairs slaty basally, greyish white terminally. Ears 

 short, projecting but slightly above the fur; practically nakeil. 

 Upper surface of hands and feet dull whitish. Tail sliort, 

 di-abby whitish above, dull white below. 



Piioc. ZooL. Soc— 1910, No. XLII. 42 



