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Trionychidae is a family of turtles, commonly known as softshell turtles or simply softshells.The family was described by Leopold Fitzinger in 1826. Softshells include some of the world's largest freshwater turtles, though many can adapt to living in highly brackish waters.
The alligator snapping turtle (Macrochelys temminckii) is a large species of turtle in the family Chelydridae. The species is endemic to freshwater habitats in the United States. M. temminckii is one of the heaviest living freshwater turtles in the world. [4] It is the largest freshwater species of turtle in North America. [5]
The European pond turtle is a medium-sized turtle, and its straight carapace length varies quite a bit across its geographic range, from 12 to 38 cm (4.7 to 15.0 in). The carapace is dark brown to blackish, with a hint of green. The head and legs are spotted with yellow. The plastron is yellowish.
The turtle uses its paws like a bear for hunting and slicing food, while biting it. Despite this, a common snapping turtle cannot use its claws for either attacking (its legs have no speed or strength in "swiping" motions) or eating (no opposable thumbs), but only as aids for digging and gripping. Veterinary care is best left to a reptile ...
The spiny softshell turtle (Apalone spinifera) is a species of softshell turtle, one of the largest freshwater turtle species in North America. Both the common name, spiny softshell, and the specific name , spinifera (spine-bearing), refer to the spiny, cone-like projections on the leading edge of the carapace , which are not scutes (scales).
The pig-nosed turtles can grow to about 70 to 75 cm (28 to 30 in) straight carapace length, with a weight of over 20 kg (44 lb). [8] C. insculpta in captivity. Unlike the soft-shelled turtles of the family Trionychidae, the pig-nosed turtle retains a domed bony carapace beneath its leathery skin, rather than a flat plate. It also retains a ...
Chelodina (Chelydera) expansa, commonly known as the broad-shelled river turtle, broad-shelled snake-necked turtle, [2] or giant snake-necked turtle, [3] is a pleurodiran freshwater turtle and is the largest of the long-necked turtles. [4] It is widely sympatric with the Murray River turtle and eastern snake-necked turtle. [5]
The Pleurodira turtles are currently restricted to freshwater habitats in the Southern Hemisphere, largely to Australia, South America, and Africa. Within the Pleurodira, three living families are represented: Chelidae , also known as the Austro-South American side-necked turtles, the Pelomedusidae , also known as the African mud terrapins, and ...