SIMIA SYNDACTYLA. 
the arrangement of which is now in progress at their Museum at the India House, 
together with that of a general series of Quadrupeds and Birds from Java and other 
Islands of the Eastern Archipelago. Three specimens of the Siamang, of different 
sexes and ages, are placed in that Museum ; and, with the permission of the Honour- 
able Court of Directors, I am enabled to illustrate the description of Sir Stamfoed 
Raffles, contained in the thirteenth volume of the Transactions of the Linnean 
Society, by a figure of our animal from the pencil of Mr. Daniell, and to add some 
details regarding its dimensions, form, and bony fabric. 
" The Simia syndactyla is of a jet-black colour throughout; it is upwards of three 
feet in height, and of a robust and muscular frame. It agrees with the Simla Lar 
of Linnaeus, in being tailless, having naked callosities, and arms reaching to the feet. 
It differs, however, essentially in having the index and middle toes, or rather fingers, 
of the hind feet united as far as the middle of the second phalanx ; in having two 
loose and naked folds of skin on the throat, which I have observed to be occasionally 
inflated with air ; and in being entirely black, with the exception of a few brown 
hairs on the chin, which appear to become gray with age. The hair is long and 
soft ; the face is without hair, and black, as are also the breasts of the female. The 
orbits of the eye are circular, and remarkably prominent. The canine teeth are 
long."— Tr. Linn. Soc. 
The Dimensions of the largest specimen, at the Museum at the India House, 
are the following: — 
Feet Inches. 
Entire height from the heel to the summit of the head 3 2 
Length of the head and neck 0 6 
the arm 1 0\ 
the fore arm 1 2£ 
the hand and fingers 0 
the thigh bone 0 8^ 
the leg 0 8 
the foot 0 5£ 
The skull of an adult subject, which I examined at the Museum of the Royal 
College of Surgeons, affords the following remarks : — Its dimensions longitudinally, 
from the most projecting point of the front teeth to the occiput, are five inches 
and two lines, and its height three inches and six fines. The general form is 
oblong, increasing very slightly hi breadth posteriorly. The orbits advance greatly 
in front, by means of the frontal-margin projecting forward, being continued 
