A FOURTH COLLECTION OF SIAMESE MAMMALS. 53 
128; zygomatic breadth, 72.5; breadth of braincase, 42; maxillary 
tooth-row exclusive of incisors (alveoli), 55; greatest length of upper 
sectorial, 16.6 ; interorbital breadth, 27 ; postorbital constriction, 21.8 ; 
breadth of basi-occipital, 17.5; mastoid breadth, 45. 
6. Arctictis binturong binturong (Rarr.es). 
Arctictis gairdner?, Thomas, Ann. and Mag. Nat. Hist. (8) XVII, 
p. 270 (1916). 
Arctictis binturong binturong, Kloss, Journ. N. H. 8. Siam, IT, p. 293 
(1917). 
] 2 juv. from Sikawtur, N. W. of Raheng, W. Siam, 1,500 ft. 
25 May 1917 [No. 2656/CBK.]. Collected by Mr. K. G. Gairdner. 
Orig. No. 444. 
General colour above black with the base of the hairs dirty 
white, this colour much exposed on shoulders, sides and thighs; head 
and limbs grizzled with whitish; front of ears white ; a few coarse buffy 
annulations on the rump; underparts of body dirty white, many 
hairs with black tips. Tail black, the hairs with dirty white bases 
much exposed below at the root. The longer whiskers yellowish. 
Head and body, 658; tail, 695; hind foot, 125; ear, 48 mm. 
The skull is that of a young animal with milk dentition, the penul- 
timate molars having just come into place. Length, 136; zygomatic 
breadth, 72 mm. 
7. Tupaia glis belangeri (Waay.) 
Tupaia belangert, Wroughton ( partim), Journ. Bombay N. H. S., 
XXIII, p. 707 (1915) [Tenasserim village ; Banlaw and Tagoot, 
75 miles up the Tenasserim river]; Kloss, Journ. N. H. S. 
Siam, II. p. 9 (1916) [Patiyn, S.W. Siam]; Gyldenstolpe, Kungl, 
Sv. Vet. Akad. Handl., 57, No. 2, p. 18 (1917) [Koh ak, S.W. 
Siam]. 
1 d ad. from Pa Meang, Me Nga, N.N. E. of Lakon Lampang, 
N. Siam [No. 2669/CBK.]. Obtained by Messrs. Williamson and 
Smith’s collectors. 24th Sept., 1917. 
1 3 ad., 1 2 vixad., 1 2 ad. from Sikawtur, N.W. of Raheng, 
W. Siam [Nos. 2657-9/CBK.]. Collected by Mr. K. G Gairdner. 
1 d ad. from Hua Hin, Pran, S.W. Siam [No. 24538/CBK.]. 
Obtained by Messrs. Williamson and Smith’s collectors. 21 June 1917. 
1 2 vix ad. from Pran River mouth [No, 2544/CBK.]. Messrs. 
Williamson and Smith’s collectors. 26 June, 1917. Mamme 3-3=6. 
VOL. III, NO. II, 1918. 
