| Publication Type: | Journal Article |
| Year of Publication: | 1959 |
| Authors: | J. S. Ryland, Bobin G. |
| Journal: | Proc. zool. Soc., Lond. |
| Volume: | 133 |
| Start Page: | 423 |
| Pagination: | 423-433 |
| Date Published: | 1959 |
| Publication Type: | Journal Article |
| Year of Publication: | 1959 |
| Authors: | J. S. Ryland, Bobin G. |
| Journal: | Proc. zool. Soc., Lond. |
| Volume: | 133 |
| Start Page: | 423 |
| Pagination: | 423-433 |
| Date Published: | 1959 |