72 JOTJRIsAL, BOMBAY NATURAL KIST, SOCIETY, Vol. XXVII. 



Key to the suborders of the Ungulata. 



A. — Upper lip and nose not produced into 

 a flexible trunk. 



a. The third and fourth toes, which 



may be the only ones, equal in 

 size, and symmetrical to a verti- 

 cal line drawn between them ... I. Artiodactyla. 



b. The third toe, which may be the 



only one, larger than the lateral 

 ones, when present, and symmet- 

 rical in itself II. Perissodactyla. 



'iS.— Upper lip and nose produced in a 



trunk III. Proboscidea. 



Suborder I. — Artiodactyla. 



The Suborder is divisible into three Sections as follows ; — 



Key to the sections of the Artiodactyla. 



A. —Upper incisors wanting ; ruminating. 



a. Horns or antlers present, at least 



in males... ... ... ... I. Pecora. 



b. No horns or antlers ... ... II. Tragulina. 



B. — Upper incisors present ... ... III. SuiNA. 



Section I. — Pecora. 



This Section includes two Families which may be distinguished 

 as follows ; — 



Key to the families of the Pecora. 



A. — Horns permanent; a corneous sheath 



on a bony core ... ... ... I. BoviDiE. 



B. — Horns solid, no cores, deciduous, gene- 

 rally branched ... ... ... II. CERVIDiS. 



Family I. — BoviDjE. 



The BoviD^ have been divided into a number of Subfamilies, 

 but in dealing with the restricted Indian fauna, it has not seemed 

 necessary to use thern. I may note however that in the following 

 key, the first three genera represent the Bovine, the next four the 

 Oaprin^, the next three the Rupicaprin^, the following two the 

 Tragelaphin^, and the last three the Antilopin^. The genera 

 of the BoviD^ may be arranged in a key as follows : — 



Key to the genera of the Bovid^. 



/. — Horns smooth, or closely, irregularly, 

 and transversely wrinkled. 



