bo 
a 
(3%) 
Genus II. TETRACEROS. 
Type. 
Tetraceros, Hardwicke, Trans. Linn. Soc. xiv. p. 524 (1825) . . T. QUADRICORNIS. 
Size small; build slender; anteorbital glands large, oval, opening into a 
short deep slit on each side of the muzzle; crown not tufted; tail short; 
mamme four. 
Skull with large lacrymal fosse; upper molar teeth without additional 
columns. 
Horns normally four, the posterior, which correspond to the ordinary pair 
found in Cephalophus, placed as in that genus and similar in character, but 
directed more vertically upwards ; anterior pair placed on the front part of 
the frontals, level with the front of the orbit, much shorter than the posterior 
pair, and often entirely absent. Female hornless. 
Distribution. Peninsula of India. 
This genus, the Indian representative of Cephalophus, contains only the 
Four-horned Antelope and its two-horned subspecies. The latter we follow 
Mr. Blanford, the latest and best authority on the subject, in considering as 
not specifically separable ; but we have some hesitation in doing so, and have 
treated it as at any rate deserving the position of a recognizable subspecies. 
