Centropus anselli
J G Keulemans, Changes by <a href="//commons.wikimedia.org/wiki/User:Kersti_Nebelsiek" title="User:Kersti Nebelsiek">User:Kersti Nebelsiek</a>
1874
Proceedings of the Zoological Society of London 1874 (<a rel="nofollow" class="external text" href="https://archive.org/stream/proceedingsofgen74zool#page/n296/mode/1up">web</a>)