ALLEN: MAMMALIA. 213 
sides are confluent medially. There are three salient angles externally and four 
internally. The second upper molar is essentially similar but with one less 
triangle, so that there are three salient angles on each side and the enamel folds 
of opposite sides are partly open at their bases. The third upper molar has the 
usual anterior tranverse prism succeeded by two nearly opposite folds, then a 
trefoil of three lobes, two internal, one antero-external, so that the tooth has three 
external and four internal salient angles or slightly rounded lobes. 
The anterior lower molar consists of an anterior closed enamel space having 
one external and two internal projections, followed by three transverse spaces 
formed by the confluence medially of the enamel folds of opposite sides. This 
tooth has therefore four external and five internal salient angles. The second 
lower molar is of the usual three transverse prisms formed by the confluence of 
the enamel folds of opposite sides. The third lower molar is similar but the 
external reentrants are shallow notches while those of the internal side are deep 
and run forward at a strong angle to the longitudinal axis. Each of these two 
last teeth has thus three external and three internal angles. 
Measurements:— The measurements of the type and three other specimens, 
taken in the flesh by the collector, follow:— 
Total 
No. Length. Tail. Hind Foot. 
7788 Type. 148 43 18.5 
7185 145 41 15 
7186 147 48 17 
7188 139 40 16 
The skull of the type presents the following dimensions:— greatest length, 
25.8; basal length, 23.3; palatal length, 13; zygomatic breadth, 14.3; interorbi- 
tal constriction, 4.4; mastoid breadth, 11.8; upper diastema, 6.7; mandible 
from condyle to tip of incisor, 17; alveoli of upper molars, 6; alveoli of lower 
molars, 5.8. 
Remarks:— Four specimens of this interesting species were secured by Mr. 
Zappey, in Hupeh, three at Changyanghsien and one at Kwangpow. It is a 
very rusty-looking animal approaching a dark Evotomys in color above, due in 
part to the suppression of black hairs, while the tawny wash on the belly is 
remarkably unlike the color of M. melanogaster or the next species about to be 
described. In these respects it probaby approaches M. (Caryomys) inez, 
recently described by Mr. Oldfield Thomas (1909, p. 976) from the mountains 
of Shansi and differs equally from his newly described M. melanogaster eleusis 
from northern Yiinnan which it approaches in size. It is noteworthy that Mr. 
