Stamp: Cerberus rynchops (Sierra Leone 2016)
Cerberus rynchops (Sierra Leone 2016)
25 March (Sierra Leone ) within release Marine Life - Water Snakes (2016) goes into circulation Stamp Cerberus rynchops face value 24,000 Sierra Leonean leone
| Stamp Cerberus rynchops in catalogues | |
|---|---|
| Michel: | Mi: SL 7057 |
Stamp is square format.
Stamp from souvenir sheet. Although this issue was authorized by the postal administration of Sierra Leone, the issue was not placed on sale in Sierra Leone, and was only distributed to the new issue trade by Sierra Leone's philatelic agent.Also in the issue Marine Life - Water Snakes (2016):
- Stamp - Cerberus rynchops face value 24,000;
- Stamp - Enhydris plumbea face value 6,000;
- Stamp - Helicops angulatus face value 6,000;
- Stamp - Homalopsis buccata face value 6,000;
- Stamp - Nerodia fasciata face value 6,000;
Stamp Cerberus rynchops it reflects the thematic directions:
Animals are multicellular, eukaryotic organisms of the kingdom Animalia (also called Metazoa). All animals are motile, meaning they can move spontaneously and independently, at some point in their lives. Their body plan eventually becomes fixed as they develop, although some undergo a process of metamorphosis later on in their lives. All animals are heterotrophs: they must ingest other organisms or their products for sustenance.
Snakes are elongated, limbless reptiles of the suborder Serpentes Like all other squamates, snakes are ectothermic, amniote vertebrates covered in overlapping scales. Many species of snakes have skulls with several more joints than their lizard ancestors, enabling them to swallow prey much larger than their heads (cranial kinesis). To accommodate their narrow bodies, snakes' paired organs (such as kidneys) appear one in front of the other instead of side by side, and most have only one functional lung. Some species retain a pelvic girdle with a pair of vestigial claws on either side of the cloaca. Lizards have independently evolved elongate bodies without limbs or with greatly reduced limbs at least twenty-five times via convergent evolution, leading to many lineages of legless lizards. These resemble snakes, but several common groups of legless lizards have eyelids and external ears, which snakes lack, although this rule is not universal (see Amphisbaenia, Dibamidae, and Pygopodidae).
