1908.] 



SZE-CHUEX AND BHUTAN TAKINS. 



801 



adult bull and cow ; the bull is larger and darker than the figured 

 specimen. The skull i-epresented in text-fig. T69 (p. 798) belono-s 

 to the bull obtained by Mr. Brooke. 



Special interest attaches to the skull of a very young Takin 

 '(text-fig. 171), with the three pairs of milk-molars just about to 

 cut the gum, and no traces of horns whatever. Unfortunately no 

 skulls of Serow or Musk-Ox of corresponding age are available 

 for comparison, so that it is impossible at present to get much 

 further in the matter of the Takin's relationships. 



Text-fiff. 171. 



Skull of very j-oung Sze-cliueii Takin, collected by Mr. Brooke. 



Compared with that of a somewhat older Serow, in which Itoi-us 

 are developed and the first true molars in use, the skull of the 

 baby Takin is mainly distinguished by the great elevation of 

 the frontal region, and the shortness and breadth of the nasal 

 bones, — characters which become greatly exaggerated in the 

 adult. The premaxillfe are still more widely sundered from the 

 nasals than is the case in Serows ; and above the supraoccipital, 

 wedged in between the hind portions of the parietals, is a large 

 undivided interparietal, which I believe to be represented in the 

 Serow skull. Allowing for the greater breadth of that of the 

 Takin, the two skulls seem in other respects to present a great 

 general similarity. 



[Addendum. — Since the paper was read I have received a letter 



51* 



