| Publication Type: | Journal Article |
| Year of Publication: | 1909 |
| Authors: | W. D. Lang |
| Journal: | Proceedings of the Zoological Society of London |
| Volume: | 30 |
| Pagination: | 285 - 307 |
| Date Published: | 1909/// |
| URL: | http://onlinelibrary.wiley.com/doi/10.1111/j.1096-3642.1909.tb01869.x/abstract |