228 MR. 0. THOMAS ON THE [Apr. 16, 
Sibutu I., Oriolus chinensis and Sarcops calvus, the latter at least 
is purely Philippine, I cannot help thinking that a more extended 
knowledge of its avifauna would probably show a preponderance of 
western rather than eastern species. ” 
In concluding this sketch of the grounds upoa which I am induced 
to consider Palawan and the other islands above mentioned as com- 
ponent parts, from a zoo-geographical point of view, of the Bornean 
group, I may mention that I hope to be able to obtain a small 
collection from the mountains of Palawan before long, and also one 
from Sibutu. 
2. On the Mammals of Mount Kina Balu, North Borneo. 
By Otprietp Tuomas, Natural History Museum. 
[Received April 2, 1889. ] 
(Plate XXIV.) 
The Mammals described in the present paper formed part of the 
large zoological collections made during 1887 and 1888 on the great 
mountain Kina Balu in North Borneo by Mr. John Whitehead, 
a gentleman who, although primarily an ornithologist, yet wisely 
collected whatever Mammals he was able to obtain in that most 
interesting and as yet unknown part of the island. 
The species of which specimens were obtained number 21. Of 
these 6 were new to science, and 5 more werenew to Borneo, thus in- 
creasing the known Mammal fauna of the island by no less than 11. 
The large number of new species is a most remarkable fact, and one 
that shows how far we still are from anything like a complete 
knowledge of the smaller Mammalia and their distribution ; and this 
is especially the case with the Rodents, to which, as usual in such 
cases, the majority of the new forms belong. 
Until more is known of the mammals inhabiting the other 
mountains of Borneo, it is not possible to draw any general geo- 
graphical deductions from the present collection ; but it may be noted 
that, of the additions to the Bornean fauna, one species was pre- 
viously only known from the Himalayan region, where also is found 
the nearest ally of one of the new species, two are Sumatran, one is 
Javan, and one occurs in Celebes. 
1, SemnopirHecus HosEI, Thos. P. Z. 8. 1889, p. 159, pl. xvi. 
a. Skull, 4000 feet. 
The only other locality known for this species is Baram, on the 
coast at the junction of Brunei and Sarawak, where the type specimen 
was obtained by Mr. Charles Hose. The present skull is that 
mentioned in the original description (supra, p. 159). 
