724 DR.J.MURIE ON MACACUS MAURTJS. [June 4, 



not bare of hairs, but, on the contrary, has an elevated fringe ex- 

 tending quite across the superciliary ridge. Schreher gives a rusty 

 brown upon the neck and shoulders, absent in our M. mourns. But, 

 apart from colour, the physiognomy is most unlike, the canine ridges 

 of C. niger being prominent. When the skull is taken into consi- 

 deration, the two forms are instantly admitted to be widely distinct. 



The other two short-tailed Macaques (II. speciosus and M. are- 

 foides) cannot be mistaken for M. maurus, if only on account of 

 their flesh-coloured and more often bright-red faces. 



Fig. 1 . 



Pelvic region of the Moor Monkey in profile, with upper femoral segment m 



natural position. 



natural position 



The skeleton of the foregoing animal, described by Dr. Gray, is 

 mounted in the British Museum ; and, fortunately, the spine has 

 n left with its intervertebral attachments. 



Of cervical, dorsal, and lumbar vertebrae I need but note their 



i imbers are seven, twelve, seven, respectively, the last lumbar ver- 



bra having its transverse processes attached to the ilium by a strong 



^amentous union. Metapophyses and anapophyses are conspicu- 



us in all save the last two lumbar vertebrae ; but in the eleventh 



d twelfth dorsals they are fairly developed. 



The sacrum consists of three less or more ankylosed vertebrae, 

 whereof two form a wide ovoid surface, and abut against the sides of 

 he ilium by a loose sacro-iliac synchondrosis. The transverse pro- 

 cesses of the third sacral are narrower and shorter than the two 

 preceding, viewed inferiorly ; but on the dorsum the laminae are 

 Mibequal in all three. A neural spine is fairly developed in the an- 

 Lor sacral, but in the two posterior ones it is only represented by 

 bin, sharp, and continuous ridge of bone. 



The shortening of the tail is one of the notable features of the 



.ornean Ape, as distinguished from certain others of the genus 



Macacus. In this instance the extreme length of the caudal verte- 



