Geographic Range. Pig-nosed turtles have a very restricted range, being found in the northernmost river systems of the Northern Territory of Australia and in. The pig-nosed turtle is the sole surviving member of its entire family, Carettochelyidae, and sits alone on a branch of the tree of life reaching back around Learn more about the Pig-nosed turtle – with amazing Pig-nosed turtle videos, photos and facts on Arkive.

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The best laying sites have soil with an ideal moisture content to easily make a nest czrettochelys. Retrieved 29 May Journal of Paleontology, 87 4: Some literature claims two subspeciesbut a recent paper rejects this.

Bever,”Carettochelys insculpta” On-lineDigital Morphology. Fully-developed embryos will delay hatching until environmental cues signal the onset of the wet season, when embryos hatch en masse. During the wet season, pig-nosed turtles usually migrate into the lower estuarine floodplains.

Perhaps the most unique feature of this species, which leads to its common name, is the elongated, fleshy, pig-like snout, which acts like a snorkel, allowing the turtle to breathe while the rest of the body remains submerged 4 7 8 9 Molecular Phylogenetics and Evolution Roll spin as the shell and skin fade 2mb.


In the wild, pig-nosed turtles appear to be a social species, although they are widely considered to be highly aggressive towards conspecifics and other turtles in captivity.

Chelonian Research Foundation, Massachusetts.

19. Pig-nosed Turtle

Origin and diversification of the turtle superfamily Testudinoidea. Nests, eggs and embryonic development of Carettochelys insculpta Chelonia: American Museum Novitates Using a universal trigger rather than simply waiting for incubation to finish means they all hatch at carettocchelys same time.

Embed this Arkive thumbnail link “portlet” by copying and pasting the code below. A thick protruding snout with laterally-placed nares gives the head of C.

Carettochelys insculpta | The Reptile Database

The pig-nosed turtle only leaves the water to nest. Brazilian snake-necked turtle Hydromedusa maximiliani.

Although exportation from these countries is officially regulated, an illegal market still exists 7 9and the problem has been exacerbated by the introduction of modern technology such as outboard motors 6 7. Turtles of the World.

Tortoise and Freshwater Turtle Specialist Group ยป Carettochelys insculpta,

The body of the pig-nosed turtle is grey, olive-grey or grey-brown above, whitish below, and there is a whitish blotch behind each eye 4 7 8 9 As the sole remaining member of its family, the pig-nosed turtle is of considerable interest to scientists and conservationists, and may also serve as an important flagship species for carsttochelys 18helping to conserve not only this unique turtle but also the other species which share its habitat.

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Sonoran Herpetologist 5 6: The pig-nosed turtle is still a relatively poorly known species 16and its rather restricted range and carettocjelys nesting habits make it particularly susceptible to overexploitation 6 7. They do not reach sexual maturity until around 16 years of age, and females lay their eggs in shallow holes close to the water. Carettocchelys turtles lack bony scutes insclpta their shell, which has a leathery texture akin to that found in softshell turtles.

Sign up to our newsletter Get the latest wild news direct to your inbox. Livestock, feral animals and agriculture also threaten the habitat of the species in Australia.

View Gallery 3 2 3. First record of the pitted-shelled turtle, Carettochelys insculpta, from Australia. Karyotypes and evolutionary relationships of trionychid turtles.

Accessed April 08, at http: They seem to display a degree of social structure during the cooler dry season around the hydrothermal vents that line some river systems they inhabit.