Chelidae

Chelodina longicollis (Shaw, 1794)

Chelodina longicollis, the eastern long-necked turtle, is an Australian turtle that can tolerate unusually cold conditions for pleurodires.

Chelodina expansa Gray, 1857

Chelodina expansa, the broad-shelled river turtle, is the long-necked turtle with the world’s longest neck relative to body size, native to Australia.

Chelodina oblonga Gray, 1841

Chelodina oblonga, the oblong turtle, is a freshwater opportunistic carnivorous turtle found across a range of habitats including urban and agricultural areas.

Emydura subglobosa (Krefft, 1876)

Emydura subglobosa is a colorful hard-shelled aquatic Chelidae turtle found in Australia and southern New Guinea.

Emydura macquarii (Gray, 1830)

Emydura macquarii, the Macquarie River turtle, is an Australian almost entirely aquatic turtle with XY sex determination.

Myuchelys latisternum (Gray, 1867)

Myuchelys latisternum is a sexually dimorphic Australian freshwater turtle with shell marginal serrations, adapted to varied habitats.

Chelus fimbriata (Schneider, 1783)

Chelus fimbriata (mata mata) is a large sedentary aquatic turtle found across northern South America, with specialized camouflage anatomy.

Acanthochelys spixii (Duméril & Bibron, 1835)

Acanthochelys spixii is a South American endemic chelid turtle found across parts of the Southern Cone.

Platemys platycephala (Schneider, 1792)

Platemys platycephala is a medium-sized South American twist-necked side-necked turtle that lives in shallow forest waters.

Phrynops williamsi Rhodin & Mittermeier, 1983

Phrynops williamsi (Williams' toadhead turtle) is an endemic South American chelid turtle found in freshwater wetlands of southeastern Brazil, Uruguay, and Argentina.

Phrynops hilarii (Duméril & Bibron, 1835)

Phrynops hilarii is a South American freshwater turtle with a distinctive flattened oval dark carapace and striped head.

Phrynops geoffroanus (Schweigger, 1812)

Phrynops geoffroanus is a large South American side-necked turtle that lives in freshwater rivers.

Mesoclemmys gibba (Schweigger, 1812)

Mesoclemmys gibba is a small side-necked toadhead turtle found across a wide area of South America.

Hydromedusa maximiliani (Mikan, 1825)

Hydromedusa maximiliani, the Brazilian snake-necked turtle, is a small oviparous turtle native to mountain streams of Atlantic rainforest in southeastern Brazil.

Hydromedusa tectifera Cope, 1870

Hydromedusa tectifera is a turtle species with a keeled carapace, marked head and neck, and size differences between sexes.