A FOURTH COLLECTION OF SIAMESE MAMMALS. 65 
Skulls :—greatest length (7. e. condylo-basal), 77.6, 71; basilar 
length, 68, 61; palatilar length, 42.38, 37; diastema, 27, 23; upper 
molar row (alveoli), 15.4, 143; width of posterior nares, 5, 6.1; breadth 
of combined nasals, 12.8, 10; greatest breadth of frontals, 27, 23; inter- 
orbital constriction, 14.8, 12.8; zygomatic breadth, 60, 53 mm. 
In the smaller animal the occipital plane is much further from 
the perpendicular than in the other and the bullae are more dilated. 
25. Acanthion brachyurus Elossi. 
Acanthion klossi, Thomas, Aun & Mag. Nat. Hist. (8) XVII, p. 136 
(1916); Kloss P. Z.8. 1916, p. 60. 
2 2 subad. purchased in Bangkok by Mr. J. J McBeth and 
stated to have come from south-west of Ratburi on the Meklong River. 
[Nos. 2684, 5/CBK.}. 
A narrow crest of long slender bristles, white for halt their 
length, extending from the crown to behind the shoulders ; an oblique 
white stripe on the neck from the back of the throat to front of shoulder 
and a few whitish annulations on the nape. Posterior parts of back and 
sides and upper surface of tail clothed with white quills having a single 
black ring of varying width, and also with a few slender flexible quills 
white throughout. Tail whitish below. All the remaining parts dark 
brown, blackish on the limbs. Rattle at end of tail consisting of 
slender stems each bearing a single hollow capsule. 
Both specimens are in perfect condition externally but unfortu- 
nately neither is full grown. 
Collector’s external measurements :—head and body, 660, 400 ; 
tail, 185, 115 ; hind foot, 87, 82 ; ear 82, 82 mm. 
Skulls :—upper length ( + ) 126, 119 ; condylo-basilar length, 
118, 109; diastema, 32, 830; upper molar row (alveoli ), 28.6, 26.2 ; 
length of nasals, 63, 63 ; breadth of combined nasals, 39.5, 39 ; length 
of frontal suture, 80, 27 ; zygomatic breadth, 67, 66.5 mm. 
26. Manis javanica. 
Manis javanica, Desm., Mamwm., p. 377 (1822); Blanford, Fauna Brit. 
Ind., Mamm., p. 599 and fig. 199 (1891). 
1 3 ad. stated to have come from south-west of Ratburi, Meklong 
River. Collected by Mr. J. J. McBeth. [ No. 2686/CBK. ]. 
An exceptionally fine aged example with an unusual number of 
longitudinal scales. 
VOL, III, NO. I, 1918. 
