214 
small, and with two pointed, downward processes beneath the nostrils. 
Fore feet short and broad, their palms with the two hinder tubercles 
rather large, sparingly covered on their upper surface with short 
hairs. Claws small and pale in colour. Hind feet rather short and 
very broad, with the under surface perfectly destitute of hairs for the 
whole of its breadth, with the exception of the caleaneum, which is 
well covered. Their upper surfaces clothed with short hairs, which 
are white on the toes, but nearly black on the middle of the foot ; 
claws short, but rather strong. Tail long, not very thick at the root, 
and tapering insensibly to a thickish point. It is finely annulated 
with scales, and slightly suffused with short hairs, much as in the 
common Rat, Mus decumanus, but at the tip there is a small but very 
distinct tuft of hairs. 
The fur is everywhere very thick and soft; that of the whole of 
the upper parts is dark dusky at the roots, tipped with brown and 
intermixed with darker hairs, towards the sides of the body tinged 
with rufous. Beneath, pure white; on the abdomen and pubal re- 
gion only the hairs are ash-coloured at their roots. The colours of 
the upper and under parts are divided by a well-defined line along 
the side of the body. A conspicuous spot of pure white marks the 
root of the whiskers, which are numerous, strong, and black. 
The specimen is a male, and the following are the dimensions :— 
in. lin. 
Length of the head and body............ v4 7 
OE ENO EAN 73), ath is =. 2b) antic oes ce a ane 
GEGHEVEAC 3-580 ios hed ouege acie Geer |e 
EX OMEBEICAL, ie Lira Byes ko eee 
from the end of the nose to the front 
OP ENG CVE cs aks stone savin cers a eek Si 
from the end of the nose to the front 
DEMME CAP? Ar les elce coc hemes ok lace ene ete si 
of the forefoot 5 eicaeotetaai 0 6% 
of the hind foot).:.5 4. wie ee ee 
Breadth of the fore feet, nearly ......... 0 3 
of the hind feet, nearly.......... 0 33 
The cranium has its nasal part short, scarcely longer than in H. 
longicaudatus, which is a smaller species. The zygomas spring out 
at once to nearly their full degree of prominence, and extend back- 
wards in the same way as in other species of the genus ; but the frontal 
region is rather more expanded than is usual, so that the space 
between the orbits is rather broad, and this gives the zygomas the 
appearance of extending further backward than they really do. The 
incisive foramina are very long, occupying nearly the whole of the 
space between the molar and incisor teeth. 
: é in. lin. 
Length from the anterior extremity of nasal 
bones to octipiialetest::...0.. .. 1. oe tf imess: 1 
Breadth across the zygomatic arches ........ 0 8 
—— between) the-orbits;’ s.7.°..0. estas we ues 
