The serrated tortoise (Psammobates oculifer) German: Kalahari-Strahlenschildkröte is a species of tortoise that occurs in the Kalahari Desert regions of southern Africa. Also known as the Kalahari tent tortoise, it is one of three members of the genus, Psammobates.
| Serrated tortoise | |
|---|---|
 | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Reptilia |
| Order: | Testudines |
| Suborder: | Cryptodira |
| Superfamily: | Testudinoidea |
| Family: | Testudinidae |
| Genus: | Psammobates |
| Species: | P. oculifer |
| Binomial name | |
| Psammobates oculifer | |
| Synonyms[2] | |
| |
Name
The common name internationally, serrated tortoise, stems from the characteristic, ray-like shell pattern and is shared by another tortoise species, Kinixys erosa. In southern Africa it is known by the unambiguous name of Kalahari tent tortoise, after its Kalahari habitat.[3]
Distribution
The serrated tortoise is found in Southern Africa. Here it favours arid savanna and scrub desert vegetation types (e.g. Kalahari thornveld, bushveld and arid grassland). This area lies within the border regions of Botswana, Namibia, and the Republic of South Africa from extreme W Transvaal and the W Orange Free State northwestward across most of Botswana and central and eastern Namibia.
In this range, which roughly matches the extent of the Kalahari Desert, its population is very sparse, and individuals are normally very rare and widely separated.[4]
Description
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This species remains relatively small, with a shell length of 12–15 cm. While it shares much of its superficial outer appearance with its relatives in the genus Psammobates, it can be distinguished by its relatively low-domed shell which is strongly serrated along its margins at the front and back.
Each shell scute is coloured with a radiating star-pattern of black rays on a tan background. The species has buttock tubercles and the shell's nuchal scute is wide and sometimes divided. The males have a longer tail and taller, more conical scutes on the back as well as a concave belly. The female lays a clutch of 1 or 2 eggs in December.
Human use and conservation
The San used the shells of small animals to produce tobacco and perfume cases, a practice that is restricted today, due to nature conservation legislation to protect this declining species.
This tortoise species feeds on certain succulents and other Kalahari plant species, and its specific diet means that it does not usually survive in captivity and usually soon dies when removed from its natural habitat. It is nonetheless threatened by illegal collecting for the pet trade. [5]
References
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