EXTERNAL CHARACTERS OF ELAPHURUS, ETC. 181 



16. On the External Characters of Elaplmrus, Hi/drojjofes, 

 Pudu, and other Cervidse. By H. I. PococK, F.R.S. 



[Received February 5, 1923 : Read March 20, 1923.] 

 (Text-figures 2-17.) 



Contents. 



Page 



Introduction 181 



Cervus, Axis, Dania 182 



JElaphurus 186 



Sydropotes 192 



OdocoUeus 196 



Mazama 200 



Fudu 201 



Rangifer 204 



Classification of the Cervida 206 



Introduction. 



In a paper " On the Specialised Cutaneous Glands of Rumi- 

 nants" (P. Z. S. 1910, pp. 840-986) I described.in some detail these 

 glands in a considerable number of genei-a and species of 

 Oervidse, pp. 939 to 967 of the memoir being devoted to this 

 family. Several well-marked forms, however, were not at that 

 time av^ailable for examination, Elaplmrus, llydropotes, and Pudu 

 being three of the most important. Since that time examples of 

 Elajjhurus and Pudu, exhibited in the Zoological Gardens, came 

 after death into my hands in the Society's Prosectorium ; and the 

 Duke of Bedford, knowing my interest in the subject, very kindly 

 sent to me from Woburn the body of a freshly -killed male example 

 of Hydrojyotes. I am also greatly indebted to His Gi'ace for the 

 chance to examine a second specimen of Elaphitrus, the body of 

 which he wss good enough to send to me. I must also take this 

 opportunity of thanking Major A, Pam, O.B.E., for securing 

 for the Society at my special request the example of the Pudu 

 on one of his trips to Chili. To the subjoined account of the 

 external characters of these three rare and isolated genera of 

 Cervidfe, I have added descriptions of some less interesting- 

 species which I had not actually examined previously, although 

 the characters of i-elated species belonging to the same genera had 

 been recorded by me. The following paper therefore is supple- 

 mentary to the one I published in 1910. To facilitate comparison 

 between the two papers, I have in the following pages quoted 

 after each specific heading the page in my previous memoir where 

 the genus or species was referred to. 



I have also included in this paper some notes on the rhinarium, 

 ears, facial vibriss8e, and penis, which I did not describe in 1910, 



Proc Zool. Soc— 1923, No. XIII. 13 



