Type.—Adult male (skin and skull), No. 155,047. U.S. National Museum. 
Collected at Chiao-ch’éng Shan, go miles west of T’ai-yiian Fu, Shansi. 
Alt, 7000 ft. October 11th, 1908. 
Original number, 32. 
Diagnosis.—Size and general characters as in Microtus (Phaeomys) johannes, 
approaching mars-brown instead of dull ochraceous-buff. 
Colour.—Upper parts a uniform-fine grizzle of cream buff and black, with a 
distinct brownish wash on crown and along middle of back, the general 
effect suggesting Ridgway’s mars-brown, and not in the least resembling 
the pallid ochraceous-buff of Microtus johannes. Sides not so dark as back, 
the grizzling less evident. Under part light cream-buff, much clouded by 
the blackish-slate under colour. Feet dull buffy-white, with an evident 
brownish wash. Tail whitish below, brownish above, not sharply bi-colour. 
Skull and Teeth.—The skull and teeth do not differ appreciably from those of 
Microtus johannes. They are conspicuously smaller than in M. mandarinus. 
Measurements in mm.—Type: head and body, 104; tail, 18; hind foot, without 
claws, 15°5; ear,g; skull, condylobasal length, 24°8 (27°4)* ; zygomatic 
breadth, 16°2 (17°8); interorbital constriction, 3°6 (4°0) ; occipital breadth, 
13°0 (13°0) ; occipital depth, 7°0 (7.2) ; nasal, 6°2 (7°0) ; diastema, 7°8 (9°2) ; 
mandible, 16°4 (18°2) ; maxillary tooth-row, 5°8 (6°4); mandibular 
tooth-row 5°8 (6°4). 
Specimens examined.—Four, all from the type locality. Caught on grassy hill- 
side, away from woods. Much earth thrown up in front of burrows. In 
both these respects this vole agrees with M. johannes. The latter, 
however, seems to be an inhabitant rather of loess mountains than of the 
high rocky mountains that form the habitat of this species. It has also 
been recorded from similar country near Ning-wu Fu, Shansi. 
26. Microtus inez, Thomas. 
$ 152. 12 miles south of Yen-an Fu, Shensi. Alt. 4000 ft. January 
gth, 190g. 
The only vole hitherto recorded from Shensi, north of Hsi-an Fu. 
Very rare here, though plentiful enough in similar districts in Shansi. 
Inhabits the bottoms of well vegetated loess ravines. 
* Measurements in parenthesis are those of an adult male Microtus mandarinus from the vicinity of T’ai-yiian Fu, 
Shansi. 
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