BioStor
 | June 11, 1850 W Spence (1850) Proceedings of The Zoological Society of London 1850: 111-155 |
 | Zoological Society (1851) Annals And Magazine of Natural History 8: 129-146 |
 | A checklist of African mammals G M Allen (1939) Bulletin of the Museum of Comparative Zoology, Harvard 83: 1-763 |