1872.] DR. J. MURIE ON MACACUS MAURUS. 723 



inches. 



From the shoulder to the elbow-joint 6 



From the elbow-joint to the wrist 5 



Greatest length of the palm 4 



Breadth of the palm to the root of the pollex J 



Length of the middle digit 1 i 



Length of the thumb or pollex 0f t , 



Hind Limb. 



From hip-joint to middle digit \Q 



Hip-joint to the knee (j 



From the knee to the heel 5 



Greatest length of the sole of the foot 5.4 



Breadth of the sole 1 1 



Length of the middle toe 2| 



Length of the great toe or hallux 2| 



Head. 



Circumference in front of ears JO 



Face, from the frontal ridge to the chin 3 



Between the frontal ridge and inner opening of nares 1 £ 



From the frontal ridge to the occiput 5 



Breadth to outer aspect of malar region 2? 



Width to the outer angles of the orbits l-# T 



Distance from median line upon lip to outer angle of orbit . . 24 



Distance from median line to root of the ear 4 



In outward aspect there is undoubtedly considerable resemblance 

 between the Moor Monkey and the Ashy-black Ape (Macacus 

 ocreatus, Ogilby). Indeed, in their juvenile stage a most practical 

 naturalist among living animals (Mr. Bartlett), as well as Dr. Sclater 

 himself, have been deceived regarding the two. The former gentle- 

 man relates to me how that he purchased two young animals which 

 he in every way regarded as representatives of the Bornean Ape 

 (31. inornatusl — M. maurus). Much was his astonishment, there- 

 fore, to find one of them develope into a typical Ashy-black Ape 

 (31. ocreatus). There can be no doubt they are two forms closely 

 allied. But the adult of the latter is distinguished by a deeper sooty 

 tint of the upper parts ; and underneath and on the limbs, &c, very 

 characteristically displays the ashy hue, wherefore its name. Its 

 tail also is a trifle longer and somewhat curled forwards ; and the 

 hair of the head has a bushier appearance. Relatively it is a higher- 

 limbed Monkey than is M. maurus. 



Another Monkey with which 31. maurus has been confounded is 

 the Cynopithecus niger or nigrescens. But our specimen differed 

 sensibly and markedly from Schreber's* figure, and from the livino- 

 example now in the Gardens. The former is destitute of the grea* 

 hairy crest so conspicuous in the latter, although, it is tiue, the fur 

 on the vertex is a shade longer than at other parts. Its forehead is 



* 



Die Saugethiere, vol. v. 1855, p. Gl, tab. 6. Papio nigrescens, Teinm. 

 Tossees. N6erl. dans l'lnde Archip61. iii. p. 111. 



