A FOURTH COLLECTION OF SIAMESE MAMMALS. 51 
(alveoli), 33.5; m2—m2 (alveoli), 21; breadth of rostrum across 
canines (alveoli), 28 ; occipito-nasal length, 98; breadth of braincase, 
58; external biorbital breadth, 61; zygomatic breadth, 71; mastoid 
breadth, 59; orbits, 22 x 23; greatest length of mandible, 80; length 
of lower molar series (alveoli), 40; height of coronal process, 33 ; 
horizontal breadth of ramus through condyle, 27. 
The skull resembles that of a female from near Bhamo figured 
by Anderson in the ‘“ Researches” (fig. 7, p. 66) as M. assamensis, 
but later referred by him to M. leoninus* (=andamanensis). 
It is to be hoped that residents in North Siam will succeed in 
obtaining further examples of this animal to prove whether the tail of 
the present specimen is natural or not; males are particularly desired. 
This species may be distinguished. from M. siamica by its more uni- 
form brown colour; the latter (more specimens of which are also 
wanted) having dark grey shoulders contrasting with a bright ochra- 
ceous rump. , 
3. Nycticebus coucang cinereus M-Epw. 
Nycticebus cinereus, Kloss, Journ. N. H. 8. Siam, IT, pp. 77, 289 
(1916-7). 
A juvenile example from Wang Pong, 8. W. Siam [No. 2672/ 
CBK.]. Collected by Dr. Malcolm Smith. 
This young animal has the face, nape, forelimbs and hind feet 
almust white and the hind legs very much frosted ; there are isolated 
dark rings round the eyes and a dark stripe commences at the occiput 
and continues to the beginning of the rump; the back and sides are 
snuff brown, slightly frosted on the sides, strongly along the dark line 
and on the rump ; the hair of the under-surface is brownish white. 
Like all young animals of this species the fur is much longer 
and denser than in the adult. 
Head and body, 190; tail, 10 ; hindfoot, 56; ear, 12 mm. 
4. Felis bengalensis. 
Felis bengalensis, Kerr, Animal Kingdom, p. 151 (1792); Flower, 
P.Z.S., 1900, p. 825; Gyldenstolpe, Arkiv for Zoologi, 8, No. 23, 
p. 25 (1914). 
1 ¢ ad. skin and skull from Chiengmai, N. Siam [ No. 2673/ - 
CBK.]. Collected by Mr. W. L. Williams. 
* Cat. Mamm. [ndian Mus., 1, p. 72. 
VOL. III, NO. II, 1918, 
