304 Proceedings of the Royal Physical Society. 



The Body along the dorsal surface measures, from snout 

 to root of tail, 4^th inches ; the head, 2 ¥ Vth inches, from 

 back of head to root of tail, 22 3 oth inches; length from snout 

 to root of tail in a straight line, inches. The tail 



measures 4^-j-th inches in length, and to the extremity of 

 the hair 4££th inches : and taken from the spirits the 

 creature weighs one ounce avoirdupois. 



The Head is full and rounded, and the snout short and 

 rather pointed ; it measures in a straight line l/^th inch in 

 length, by |-|-ths of an inch in greatest breadth behind the 

 ears. Eyes large and full. 



There are a few scattered black bristles or longer hairs 

 projecting from each side of the nose, and one or two also 

 behind the eye, between it and the ear. 



The Ears are somewhat oval in shape above, measur- 

 ing nearly fths of an inch in length by about a^ths of 

 an inch in greatest breadth ; they are covered with very 

 short hair externally, and are nearly naked on their inner 

 surface. 



There is a single transverse plate or lamella projecting 

 above the auditory meatus ; it measures fVths of an inch in 

 length, by xV^h of an inch in breadth or projection. Dr 

 S. stated that in the Angwantibo of Old Calabar, the 

 Perodicticus Calabarensis, as he designated it, which he had 

 formerly the pleasure of bringing before the notice of 

 this Society, the ear had two of these transverse lamellae. 

 Dr J. E. Gray, of the British Museum, has since set 

 apart the Angwantibo, he believed very properly, as a new 

 genus Artocebus, so that it is now named the A. Cala- 

 barensis. 



The limbs are covered with hair, becoming shorter 

 towards the distal extremities, and extending even to the 

 extremity of the distal phalanges, which are naked below. 



The hand or forefoot has the second or index finger the 

 shortest, the fifth next in length, and the third and fourth 

 nearly equal, but the fourth slightly the longest. 



The anterior extremities measure in length : — The arm, or 

 humerus, about £$ths of an inch ; the forearm, or radius 

 and ulna, i^ths of an inch ; the hand, to extremity of the 



