1905.] MAMMALS OF CHINA. 397 



Shull. Greatest length 27 mm. ; palatilar length 12 ; diastema 8 ; 

 length of incisive foramina 6 ; length of nasals 10 ; interorbital 

 breadth 4 ; breadth of brain-case 11 ; length of molar series 

 (alveoli) 4. 



Habitat. The type comes from near the Corean border of 

 Manchuria. The British Museum contains a further specimen 

 from S. iShensi pi'ocured by Pere David, which has been referred 

 to this race. 



MiCROMYS AGRARIUS NINGPOENSIS Swinh. 



Mus nincjpoensis Swinh. P.Z. S. 1870, p. 637 et 1872, p. 818. 



Mus harti Thos. P. Z. S. 1898, p. 774. 



Very similar to M. a. manGhuricits, but lacking the rufous 

 tinge on the back, which in the present species is replaced by 

 fulvous. General colour above fulvous throughout, uniformly 

 grizzled with black. In some cases a well-defined dark stripe is 

 apparent down the back, and in most specimens a trace of a dark 

 stripe is discernible. Under parts white, sharply defined from the 

 colour of the upper parts. Tail brown above, lighter below, and 

 covered with short hairs. 



The skull does not appreciably differ from that of M. agrarius 

 ti/picics. 



Dimensions (of type converted from inches given in Swinhoe's 

 description). Head and body 81 mm. ; tail 68 ; hind foot 

 (measvired from type) 20. 



Another example, c? (in flesh, coll. E. B. Howell, no. 69). 

 Head and body 111 mm. ; tail 78; hind foot 20 ; ear 14. 



Skull. Greatest length 26 mm.; basilar length 21*5; palatilar 

 length 1 1 ; diastema 7 ; length of incisive foramina 5 ; length of 

 nasals 10; zygomatic breadth 12; interorbital breadth 4'7 ; 

 breadth of brain-case 11*5 ; length of molar series 4. 



Type. Collected by Mr. Swinhoe. ISTow in the Berlin Museum. 



Habitat. Ningpo. The British Museum contains specimens also 

 from Nankin, Hanchow, and Kuatun. 



I have had to sink, under Swinhoe's name, Mr. Thomas's Mus 

 harti, as there can be no doubt as to its identity with ningpoensis. 

 Since the description of Jl^its harti was written, a fine series has 

 been received fi'om the neighbourhood of ISTankin, collected by 

 Mr. Howell. It appears that although the dorsal stripe is as a rule 

 faint and indistinct, it is in some cases deep black and very well 

 marked, while in other individuals no trace of it can be found. 



Herr Matschie {in litt.) states that in the type of ningjjoensis 

 there is no trace of the dorsal stripe, and the same is the case 

 with the type of M. harti. 



Little is known of its habits ; Mr. Howell seems to have 

 trapped most of his specimens on open ground in the vicinity of 

 water. 



