I 
REPORT ON THE MAMMALS 
By J. LEWIS BONHOTE, M.A., F.Z.S. 
T he mammal collection brought home by Messrs. Robinson and Annan- 
DALE has, perhaps, tended more to our knowledge of the fauna of the 
Malay Peninsula than any other collection from that district which has 
reached this country of late years. This has not alone been due to the fact that 
the present material has been procured on the modern system, accurate measure- 
ments being taken, and the skulls carefully preserved apart from the skins, but 
also because during the last four or five years the ‘ Skeat ’ Expedition and the 
collections of Mr. Lyle in Siam proper, as well as large collections received in 
America from Dr. W. L. Abbott, had, while adding many facts, opened up 
many interesting points, several of which this collection has enabled us to 
solve. The result is that, although much still remains to be done, the mam- 
malian fauna of the Malayan area is as well, or even better, known than that 
of any other part of the Oriental region. 
The present collection contains some sixty-four species, of which eight 
are described as new. The connexion between the Malayan and Bornean 
fauna is shown, apart from species previously noticed as having representative 
forms in both localities, by the discovery of a cat, closely related to Felis badia^ 
and a small squirrel, related to S. lowii^ which I have named after Mr. 
Robinson. A species of Rhinolophus allied to, but quite distinct from, 
R. affinis is described ; this species has been known for some time, but was 
considered as referable to R. rouxi^ Temm., which, however, is shown not to 
be the case. It will probably, eventually, be found to occur in Borneo, as 
Mr. Miller has already described another form of it from one of the islands 
in the S. China Sea, under the name R. spadix. 
Four species of Mus are among the novelties ; one, Mus annandalei^ is a 
very distinct species, especially in its cranial characters, while of the other three 
two belong to the Mus rattus group, and one is allied to Mus jerdoni. Owing 
to the large number of species already described from this part of the world, 
the working out of these rats necessitated a very careful examination, as far as 
was possible, of the whole of the rats of the Oriental region, the results 
