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Tortoiseshell or tortoise shell is a material produced from the shells of the larger species of tortoise and turtle, mainly the hawksbill sea turtle, which is a critically endangered species according to the IUCN Red List largely because of its exploitation for this trade. The large size, fine color, and unusual form of the hawksbill's scutes ...
The turtle shellis a shield for the ventral and dorsal parts of turtles(the orderTestudines), completely enclosing all the vital organs of the turtle and in some cases even the head.[1] It is constructed of modified bony elements such as the ribs, parts of the pelvis and other bones found in most reptiles. The bone of the shell consists of both ...
The African spurred tortoise ( Centrochelys sulcata ), also called the sulcata tortoise, is an endangered species of tortoise inhabiting the southern edge of the Sahara Desert, the Sahel, in Africa. It is the largest mainland species of tortoise in Africa, and the third-largest in the world, after the Galapagos tortoise and Aldabra giant tortoise.
Linnaeus, 1758. Tortoises ( / ˈtɔːr.təs.ɪz /) are reptiles of the family Testudinidae of the order Testudines ( Latin for "tortoise"). 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 ...
Common box turtle. The common box turtle ( Terrapene carolina) is a species of box turtle with five existing subspecies. It is found throughout the Eastern United States and Mexico. The box turtle has a distinctive hinged lower shell that allows it to completely enclose itself, like a box. Its upper jaw is hooked.
The eastern box turtle is a subspecies of the common box turtle ( Terrapene carolina). While in the pond turtle family, Emydidae, and not a tortoise, the box turtle is largely terrestrial. [ 4] Box turtles are slow crawlers, extremely long-lived, and slow to mature and have relatively few offspring per year.
Carapace. Diagram of a prawn, with the carapace highlighted in red. A carapace is a dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron .
Aldabrachelys[ 1] is genus of giant tortoises, including the Aldabra giant tortoise ( Aldabrachelys gigantea) native to the Seychelles, as well as two extinct species, Aldabrachelys abrupta and Aldabrachelys grandidieri known from Madagascar. The genus name derives from Aldabra, a coral atoll in the Seychelles, plus chelys, from the Greek ...