1872.] 



DR. J. ANDERSON ON A NEW INDIAN MONKEY. 



533 



of J. rhesus, which, on the authority of Mr. Blyth, is that of an 

 adult, and the corresponding dimensions of the skull of the Sunder- 

 bunds Monkey: — 



Measurements of skull of I. rhesus (No. 1 *) and Monkey from 

 the Sunderbunds (No. 2). „ 



in. lin. in. lin. 

 4 7 5 3 



Extreme length of skull 



Anterior margin of foramen magnum to anterior 



margin of premaxillary 



Anterior margin of foramen magnum to palatal 



border (posterior) 



Posterior border of palate to tip of intermaxil- 



laries 



Extreme breadth across zygomatic arches 



Breadth over internal auditory foramen above root 



ot zygomata 



3 2 3 7 



1 4£ 1 3! 



1 10 2 4 



3 6 3 4 



2 6 2 6 



1 9| 1 9 



Breadth between temporal fossae behind orbits, 

 narrowest portion of skull 



Anterior margin of external auditory foramen to 

 lower infraorbital foramen 



Lower infraorbital foramen to tip of premaxillary 



Posterior extremity of nasals to anterior extremity 

 of premaxillaries 



Length of external aperture of nostrils 



Breadth of external aperture of nostrils 



Breadth across malars (temporal curve) 



Distance between anterior tips of maxillaries .... 



Breadth across orbits, internal margin 



Extreme height of orbits 



Greatest breadth of palate 



Length of posterior nares 



Length of alveolar surface of upper jaw 



Distance between canines internally at base 



Distance between last molars internally 



Depth from posterior border of palate to upper 

 margin of superciliary ridge 



Depth through anterior margin of foramen mag- 

 num 



Condyle of lower jaw to tip of symphysis 



Condyle to coronoid process 



Depth through coronoid process 



Depth through condyle 



Depth of jaw behind first premolar 



Depth of jaw behind last molar 



Breadth of ascending ramus 



* Blyth states that this is the skull of a very large male; and as it is the 

 largest in the Museum, I have selected it for comparison with the Sunderbunds 

 skull, although it unfortunately wants the lower jaw. — J. A. 



