Tortoises are reptiles of the family Testudinidae of the order Testudines. Like other turtles, tortoises have a shell to protect from predation and other threats. The shell in tortoises is generally hard, and like other members of the suborder Cryptodira, they retract their necks and heads directly backward into the shell to protect them.
The mata mata, mata-mata, or matamata is a South America species of freshwater turtle found in the Amazon basin and river system of the eastern Guianas. It was formerly believed to also occur in the Orinoco basin, western Guianas and upper Rio Negro–Branco system, but in 2020 these populations were found to belong to a separate species, Chelus orinocensis. Subsequently, some authorities have modified the common name of Chelus fimbriata to Amazon mata mata. These two are the only extant species in the genus Chelus.
The Greek tortoise, also known commonly as the spur-thighed tortoise, is a species of tortoise in the family Testudinidae. Testudo graeca is one of five species of Mediterranean tortoises. The other four species are Hermann's tortoise, the Egyptian tortoise, the marginated tortoise, and the Russian tortoise. The Greek tortoise is a very long-lived animal, achieving a lifespan upwards of 125 years, with some unverified reports up to 200 years.
The African helmeted turtle, also known commonly as the marsh terrapin, the crocodile turtle, or in the pet trade as the African side-necked turtle, is a species of omnivorous side-necked terrapin in the family Pelomedusidae. The species naturally occurs in fresh and stagnant water bodies throughout much of Sub-Saharan Africa, and in southern Yemen.
The red-footed tortoise is a species of tortoise from northern South America. These medium-sized tortoises generally average 30 cm (12 in) as adults, but can reach over 40 cm (16 in). They have dark-colored, “loaf”-shaped carapaces with a lighter patch in the middle of each scute, and a somewhat lighter-colored plastron (underbelly). They also have dark limbs dotted with brightly-colored scales, from which they get their name, that range from pale yellow to vivid or dark red. Visible differences are noted between red-footed tortoises from varying eco-regions. They are closely related to the more easterly-distributed yellow-footed tortoise of the Amazon Basin.
The common box turtle is a species of box turtle with six existing subspecies. It is found throughout the Eastern United States and Mexico. The box turtle has a distinctive hinged lowered shell that allows it to completely enclose itself. Its upper jaw is long. The turtle is primarily terrestrial and eats a wide variety of plants and animals. The females lay their eggs in the summer. Turtles in the northern part of their range hibernate over the winter.
The radiated tortoise is a tortoise species in the family Testudinidae. Although this species is native to and most abundant in southern Madagascar, it can also be found in the rest of this island, and has been introduced to the islands of Réunion and Mauritius. It is a very long-lived species, with recorded lifespans of up to 188 years. These tortoises are classified as critically endangered by the IUCN, mainly because of the destruction of their habitat and because of poaching.
The pancake tortoise is a species of flat-shelled tortoise in the family Testudinidae. The species is native to Tanzania and Kenya. There are also small populations in northern Zambia. Its common name refers to the flat shape of its shell.
Pelusios is a genus of African side-necked turtles. With 17 described species, it is one of the most diverse genera of the turtle order (Testudines).
The yellow-footed tortoise, also known as the Brazilian giant tortoise, is a species of tortoise in the family Testudinidae and is closely related to the red-footed tortoise. It is found in the Amazon Basin of South America. The species name has often been misspelled as denticulata, an error introduced in the 1980s when Chelonoidis was elevated to genus and mistakenly treated as feminine, an error recognized and fixed in 2017.
The forest hinge-back tortoise, also known commonly as the serrated hinge-back tortoise or Schweigger's tortoise, is a species of tortoise in the family Testudinidae. The species is indigenous to the tropical forests and marshes of central and western Africa.
Kinixys is a genus of turtles in the family Testudinidae. The genus was erected by Thomas Bell in 1827. The species in the genus Kinixys are native to Sub-Saharan Africa and Madagascar and commonly known as hinged tortoises or hinge-back tortoises.
Home's hinge-back tortoise is a species of tortoise in the family Testudinidae. The species is endemic to Africa.
The Natal hinge-back tortoise, also known as Natal hinge-backed tortoise or Natal hinged tortoise, is a species of tortoise in the family Testudinidae which is restricted to eastern southern Africa to a relatively small area around the borders of Mozambique, South Africa, and Eswatini.
The northern map turtle, also known as the common map turtle, is an aquatic turtle in the family Emydidae. It is endemic to North America.
Bell's hinge-back tortoise, also known commonly as Bell's eastern hinged tortoise, is a species of tortoise in the family Testudinidae. The species is native to central Africa. It has the hinge that characterizes all tortoises in the genus Kinixys. There are no recognized subspecies.
The striped mud turtle is a species of turtle in the family Kinosternidae. The species is native to the southeastern United States.
The Lobatse hinge-back tortoise or Lobatse hinged tortoise is a species of turtle in the family Testudinidae. It is found in Southern Africa.
Homopus femoralis, commonly known as the greater padloper, is a small tortoise of the genus Homopus, indigenous to the highveld grasslands of South Africa.
Chersobius boulengeri, commonly known as the Karoo padloper or Boulenger's cape tortoise, is a species of tortoise in the family Testudinidae. The species is endemic to the Nama Karoo Region of South Africa.
