| Publication Type: | Journal Article |
| Year of Publication: | 1976 |
| Authors: | P. J. Hayward |
| Journal: | J. nat. Hist. |
| Volume: | 10 |
| Start Page: | 319 |
| Pagination: | 319-330 |
| Date Published: | 1976 |
| Publication Type: | Journal Article |
| Year of Publication: | 1976 |
| Authors: | P. J. Hayward |
| Journal: | J. nat. Hist. |
| Volume: | 10 |
| Start Page: | 319 |
| Pagination: | 319-330 |
| Date Published: | 1976 |