366 UNGULATA 
(which are black in colour), owing to the absence of the intercor- 
nual crest of the latter. The horns are also shorter, more rounded, 
and less curved. In the Indian Museum, Calcutta, there are, how- 
ever, skulls which are to a great extent intermediate between those 
of typical Gaurs and those of typical Gayals, but these may belong 
to hybrids. The Gayal occurs in Assam, Chittagong, and adjacent 
districts, but it appears that these animals exist in a semi-domestic- 
ated condition, no wild race being known to Europeans, although 
it is probable that such may exist in the unexplored Mishmi Hills. 
Fic. 150,—The Gayal (Bos frontalis). From Sclater, List of Animals in Zoological 
Society's Gardens, 1883. 
The Banteng (B. sondaicus) is a smaller and lighter built animal 
than either of the preceding, with a longer and sharper head, and 
more rounded and slender horns. The dorsal ridge is, moreover 
but slightly developed ; while the bright dun colour of the body 
of the female readily distinguishes it from the darker hue of the 
Gaur and Gayal. 
A. fossil skull from the Pleistocene deposits of the Narbada 
valley, India, described as Bos palwogaurus, is believed to indicate 
a species nearly allied to the Gaur, if indeed it be specifically 
distinct. 
