South American Snake-necked Turtles (Hydromedusa) is a biological genus in the family Chelidae (Austro-american Side-necked Turtles) and order Testudines (Turtles).
Hydromedusa maximiliani
Hydromedusa tectifera
Elusor
Rheodytes
Flaviemys
Chelus
Mesoclemmys
Myuchelys
Rhinemys
Chelodina
Acanthochelys
Hydromedusa
Phrynops
Platemys
Pseudemydura