108 
adult female, which differs from the adult male in being of an uniform, 
and very pale, rufous tint on the upper parts of the body, and of a 
pale yellow on the under parts. The throat, cheeks and shoulder- 
mark are yellow-white. I suspect it is an accidental variety. It ap- 
pears to have but four mamme, two of which are situated on the 
lower part of the abdomen, and the remaining two near the insertion 
of the fore-legs. 
The skull of Tupaia Ellioti is smaller, considerably shorter, and 
has a broader muzzle than that of T. ferruginea, whilst on the other 
hand it is longer and larger than that of 7. Javanica, which is re- 
markable for the shortness of the facial portion. These differences 
approximate the skull under consideration to that of 7. Tana; there 
are, however, ample differences between the skulls of 7. Hiioti and 
T. Tana. The skull of the former of these two animals is rather 
smaller than that of 7. Tana, has the muzzle relatively shorter, the 
nasal bones shorter, and broader behind ; the zygomatic arch deeper, 
and the perforation in the malar bone much smaller (less than half 
the size). In the structure of the teeth, moreover, there are some 
differences worthy of note. The incisors and premolars in 7. Ellioti 
are relatively smaller than in 7. Tana; but a more important distine- 
tion—and one which distinguishes the new Tupaia trom the other 
three species noticed—consists in the form of the third premolar: it 
here resembles the last, or fourth premolar in all respects, except- 
ing in being of smaller size; having like that tooth a distinct inner 
lobe: this lobe in the other species of Tupaia is represented only by 
a minute and indistinct tubercle. The corresponding lobe in the last 
premolar in 7’. Ellioti is larger than usual, and so is the posterior 
imer lobe of the true molars. Subjoined are the principal dimen- 
sions of the skulls of the four* species of Tupaia. 
| 
T ferru-T ferru-| T. El- |T. Java- 
7. Tana. tens ginea. | ginea. | lioti. | nica, 
in. lin. in. lin. in. lin. in. lin. jin. lin, jin. Tin. 
Total length of skull ............... 2) 40) cP U2) OF} 2. OF |... T/1 4§ 
Length of ditto to the posterior 
margin of the auditory bulla } 
Width of ditto, measuring from 
the outer surface of the zy-}|1 02 1 02/1 03/0 103)0 9 
POMA \ Soc snseesnIocc sesso -eeewee 
Width of ditto between orbits ...,0 73/0 7 |0 6$/0 7 |0 62/0 63% 
Length of palate ................s000. 1 33/1 3Z%)1 OF)1 13/011 |0 83 
of nasal bones ............ 0113/0 11 |0 83)/0 9 |0 7 |0 42 
Width of ditto in front ............ 0 13/0 12/0 13/0 13/0 4)0 hk 
of ditto behind............... 0 23/0 22/0 22/0 25/0 32/0 12 
Length from anterior part of 
first premolar to hinder nar} 0 93/0 92/0 9 (0 9 |0 73/0 6 
gin of last true molar......... 
Le a ied NOWitecaeaccnnssaens VT 6241 fF VESEY ceca Lode 
eight of ditto, measured from I 
apex of coronoid process ... 0 63/0 63/0 63) ...... 0. B50), ‘Ss 
* I do not include the “ Tupai de Pégou,” because it is not yet determined that 
that animal is a distinct species from the Tupaias of the Indian Islands. 
t The occipital portion of the cranium is wanting in the specimen. 
