The tetrapod reptiles of Ceylon
1939
Deraniyagala, P. E. P. |
Deraniyagala, P. E. P.
Some extinct elephants, their relatives and the two living species
Deraniyagala, P. E. P. |
Some vertebrate animals of Ceylon
Deraniyagala, P. E. P. |
A colored atlas of some vertebrates from Ceylon
1955
Deraniyagala, P. E. P. |