1872.] DR. J. MURIE ON MACACUS SPECIOSUS. 783 



and coalesces with that behind, which is small ; the third spine is 

 obsolete. 



Mr. Mivart has already * pointed out that in Macacus speciosus 

 (No. 1083# in B. M.) the third caudal is scarcely, if at all, longer 

 than the second, yet the fourth is longer than the third ; so that 

 although there are only ten [eleven] caudal vertebrae, they do increase 

 in length backwards, thus differing from Inuus. 



The pelvis reiterates the more ordinary Macaque characters. The 

 ischial tuberosities are relatively narrow, and placed at, mayhap, a 

 trifle wider angle than is usual. Obturator foramen very large ; and 

 this induces a narrowing of the ischial plates, which otherwise are 

 short and more vertical than in M. erythrceus. 



The following are some of its proportions and angles of inclina- 

 tion : — 



Os innominatum 4*9 inch long, or as 37'7 to 100, the latter being 

 equivalent to the spine. Pelvic diameters, conjugate 2'25 inch, 

 transverse 1*9, and oblique 2 - 9 inches. 



The femur is longer and has a stouter shaft than has its short- 

 tailed congener, the Bornean Monkey. The shaft besides is some- 

 what flatter than in the latter, the Formosan, and the Rhesus 

 Monkeys. There is an unusual incurvation of the tip of the great 

 trochanter ; and this causes the trochanteric fossa to be partially 

 hidden, helped, moreover, by an additional tubercle of bone. The 

 head is set nearly at right angles to the long axis of the femoral 

 shaft. 



I have spoken of an obliquity of the condyles in M. cyclopis, and 

 of the tibia's head being inclined to this ; in M. speciosus this does 

 not obtain, the knee-joint resembling the majority of the genus. 



Among the bones of the fore limbs and chest there is little requiring 

 mention. The clavicles acromially are much curved ; and the sternum 

 has a broad thin manubrium. 



M. speciosus. 

 Spine, 1 st cervical to last Dimen- p rop or. 



sacral 13'0 = 100 



Tail in length 3-8 29'2 



Pectoral limb, less manus 10*4 80*0 

 Humerus in length. ... 5*1 39*2 



Ulna in length 5*8 44-6 



Radius in length .... 5 '3 40 7 

 Pelvic limb, less the pes 1 1 • 1 ? 85*3 



Femur in length 5*8 44-6 



Tibia 5-6 43"0 



My notes on the visceral anatomy I shall throw together in a 

 summary manner. Omentum thin and almost free from fat ; 

 attached from the spleen along the great gastric curvature to beyond 

 the pylorus, extending theuce to the csecum. Spleen trapezoidal in 

 figure ; length 2, and breadth 1 inch ; covered by the stomach, 



* P. Z. S. 186."), p. 503, footnote. 



