74 : JOURNAL, BOMBAY NAT LfRAL HIST. SOCIETY, Vol. XXVII. 



A. — Adult horns much longer than 

 head ; females hornless. 

 a. Horns spiral ; muzzle not swollen, XIII. Antilope. 

 h. Horns straight; muzzle swollen... XIV. Pantholops. 

 B. — Adult horns scarcely longer than 

 head ; female sometimes with 

 horns ... ... ... ... XV. Gazella. 



Gen, I. — BiBOS. 



Blanford includes in the genus Bos all the five subgenera re- 

 cognised by Lydekker but Thomas supports me in the view that 

 the three subgenera (Bos is limited to Europe, and Bison to Ameri- 

 ca) represented in India should be treated as full genera. 



The species frontalis I retain 



because a wild specimen is 



claimed as having been killed in 



No. 338.^awrMS, H. Smith, Tenasserim. The name soncZaicMS, 



No. 339. frontalis, Lamb. Miiller and Schlegel must give place 



No. Z^O.sondaicus, M. & S. to hanteng, Raff, which is older by 



ten years. Lydekker divides ga,u- 

 rus and banteng into a number of subspecies. The whole may be 

 arranged in a key as follows : — 



Key to ihe forms of Bibos. 



A. — Horns turning inwards at the tips. 



a. No white on back of thighs ; no 



horny mass between the horns. 

 a^ Intercornual ridge rising in a pro- 

 minent forwardly inclined arch. 

 a.^ Generally no dewlap ; no throat 



fringe ; colour olive black ... 1. g. gaurus, H. Sm. 

 6.^ A distinct dewlap and throat 



fringe; colour darker ... 2. g. readi, Lyd. 



6^ Intercornual ridge forming a less 

 prominent and less forwardly 

 inclined arch, which may be 

 entirely absent ... ... ... S. g. hubbacki, Ljd. 



b. A large white disc on back of 



thighs; a horny mass connecting 



the horns ; coat unicolor ... ... 4. bant, birmanicusi 



Lyd. 

 B. — Horns not, or scarcely, turning inwards 



at tips ... ... ... .. b. frontalis, L&mb. 



