Hose's Langur, adult male
J.Smit
1889
<i>Proceedings of the Zoological Society of London</i> (<a rel="nofollow" class="external text" href="https://archive.org/details/proceedingsofgen89zool">vol. 1889 issue 2</a>, <a rel="nofollow" class="external text" href="https://archive.org/stream/proceedingsofgen89zool#page/n219/mode/1up">plate XVI</a>)