O QUADKUMANA. 



inches. 

 From the crown of the head to the tuberosity of the 



ischium 18 



From the connexion of the clavicle with the sternum 



to the tuberosity of the ischium 11 



From the connexion of the clavicle with the sternum 



to the elbow-joint 18 



From the elbow joint to the hand 6| 



Length of the hand - . . . . 4| 



From the head of the femur to the os calcis . . . . 1 2| 

 From the head of the femur to the knee-joint ... 6^ 



From the knee to the os calcis 6 



Length of the foot 5| 



In the extended posture the fingers reach below the knee 1 . 



[The Gibbon (Hj/hbates La?°, Geoffr.).] 



A large black monkey, from Lord Shelburne' 2 , of the spider-monkey 

 kind, but has two thumbs 3 . His hair is black and strong : it is not 

 longer on one part than another, excepting on the top of the head, where 

 it is also thickest. Without a tail. 



The liver is exactly similar to the human. The gall-bladder is smaller 

 than in the human, and is somewhat contorted. 



The stomach is similar to the human, but rather more globular. 



The duodenum exactly similar to that of the human. No valvulae 

 conniventes. The last part of the mesentery adheres to the back and 

 to the psoas muscle, on the left side, as in the human. The ca?cum is 

 situated, and adheres, as in the human. The appendix [caeci] is about 

 three inches long, and half an inch in diameter. There is no meso- 



1 [The following Hunterian preparations are of the individual above noticed : — 

 Nos. 1421, the hand ; 1 422, the foot ; 1424. the head ; 2573, the external male organs of 

 generation. In a young chimpanzee of similar size, I found the weight of the brain 

 to be 7 oz. If drachm. As Tyson had published his anatomy of the Simla Troglo- 

 dytes (Anatomy of a Pigmy, 4to. 1699), Hunter appears not to have recorded the 

 results of his own dissections.] 



2 [Lord Shelburne was Prime Minister in 1782 ; resigned February 24th, 1783 ; 

 and became Marquis of Lansdowne, November 30th, 1784 : Hunter's dissection was, 

 therefore, most probably performed before that date.] 



3 [Meaning that there was a thumb on the hand as well as on the foot, whereby 

 this monkey differed from the true spider-monkeys, which Hunter knew to be defi- 

 cient in the thumb of the hand. Parts of the animal here described are preserved 

 in the Hunterian Collection, and were marked as belonging to ' Lord Shelburne's 

 monkey.' From these I determined the species to be a gibbon (Hylobctfes, Kuhl, 

 probably Hyl Lar, or the ' Long-armed ape ' of Pennant). The preparations include 

 — the cranium. No. 5030, Osteol. Catalogue, p. 757 ; the kidney, No. 1233, Physiol. 

 Catalogue: th e tongue and larynx. No. 1523. ib. : the external ear, No. 1620. ib.~\ 



