He himself remarks that when the skin was removed it was evident that the animal was nearly related to Gavaeus gaurus, or, as he calls it, bibos cavifrons.
"Natural History of the Mammalia of India and Ceylon"
Robert A. Sterndale
It is known as gayal in some parts of India, but, where the people are familiar with the mithun, the gaur is called asl'gayal, from whence Horsfield's name bibos asseel.
"Natural History of the Mammalia of India and Ceylon"
Robert A. Sterndale