Chelidae

Of the Chelidés approximately 40 S of tortoise S Pleurodires includes/understands. They are watery. She live in Australia, New Guinea and South America.

Description

The Chelodina expansa is largest of the Chelidae with nearly 50 cm adult, smallest is the Pseudemydura umbrina with 15 cm adult. These two species belong to the same subspecies of the Chelodininae .

They are watery or semi-watery. The majority of the species live in calm fresh water or the marshes, although the Chelodina siebenrocki live in salt water.

Distribution

The Chelodininae live only in Australia and New Guinea, Indonesia, while the Chelidinae and Hydromedusinae live in South America.

Systematic

See also: Testudines (phylogenetic classification)

Classification presented here is the simplification of that presented by A. Georges, J. Birrell, K. Mr. Saint, W. McCord und S.C. Donnellan based on the genetic analysis.

──o Chelonia |--O Cryptodira `--O Pleurodira |--O Pelomedusoides | |--O Podocnemididae | `--O Pelomedusidae `--O Chelidae |--O Chelodininae | |--O Chelodina (Fitzinger, 1826) | `--O | |--O Pseudemydura (Siebenrock, 1901) | `--O | `--O Rheodytes (Legler and Cann, 1980), Elusor (Edge and Legler, 1994), Elseya (Gray, 1867), Emydura (Bonaparte, 1836) `--O |--O Hydromedusinae i.e. the Hydromedusa (Wagler, 1830) `--O Chelidinae |--O Chelus (Schneider, 1783) `--O |--O Phrynops (Wagler, 1830) `--O |--O Acanthochelys (Gray, 1873), Platemys (Wagler, 1830) `--O Mesoclemmys , Batrachemmys

The kind Emydura and Elseya seems formed a group which would be Monophylétique.

See too

External references

External bonds

For more information on this family:
  • Site on the '' Chelidae '' of South America
  • Forum on all the species of '' Chelidae ''
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