Īnatomically, a few characteristics distinguish the green turtle from the other members of its family. mydas having weighed 395 kg (871 lb) and measured 153 cm (60 in) in carapace length. Exceptional specimens can weigh 315 kg (694 lb) or even more, with the largest known C. The average weight of mature individuals is 68–190 kg (150–419 lb) and the average carapace length is 78–112 cm (31–44 in).
Adult green turtles grow to 1.5 metres (5 ft) long. mydas has a dorsoventrally flattened body, a beaked head at the end of a short neck, and paddle-like arms well-adapted for swimming. Its appearance is that of a typical sea turtle. In the Hawaiian language it is called honu, and it is locally known as a symbol of good luck and longevity. As a species found worldwide, the green turtle has many local names. Its name comes from the greenish color of the turtles' fat, which is only found in a layer between their inner organs and their shell.
The species' common name does not derive from any particular green external coloration of the turtle. agassizi remains an invalid junior synonym of C. This subdivision was later determined to be invalid and all species members were then designated Chelonia mydas. mydas agassizi referred only to the Pacific population known as the Galápagos green turtle. mydas mydas referred to the originally described population, while C. These two "species" were then united as Chelonia mydas and populations were given subspecies status: C. mydas, and thus taxonomically not a separate species. Later research determined Bocourt's "black sea turtle" was not genetically distinct from C. This "species" was referred to as the "black sea turtle". In 1868, Marie Firmin Bocourt named a particular species of sea turtle Chelonia agassizii, in honor of Swiss-American zoologist Louis Agassiz. The species was originally described by Carl Linnaeus in his landmark 1758 10th edition of Systema Naturae as Testudo mydas. Herbivorous Chelonia warranted their status as a genus, while Natator (flatback) was further removed from the other genera than previously believed. The carnivorous Eretmochelys (hawksbill), Caretta (loggerhead) and Lepidochelys (ridley) were assigned to the tribe Carettini. A 1993 study clarified the status of genus Chelonia with respect to the other marine turtles. The green sea turtle is a member of the tribe Cheloniini. In addition, real estate development often causes habitat loss by eliminating nesting beaches.
Many turtles die after being caught in fishing nets. Pollution indirectly harms turtles at both population and individual scales. In some countries, turtles and their eggs are still hunted for food. However, turtles are still in danger due to human activity. In addition, many countries have laws and ordinances to protect nesting areas. It is illegal to collect, harm, or kill them. mydas is listed as endangered by the IUCN and CITES and is protected from exploitation in most countries. Those that reach maturity may live to 90 years in the wild. Later, hatchlings emerge, and scramble into the water. Females crawl out on beaches, dig nests, and lay eggs during the night. Many islands worldwide are known as Turtle Island due to green sea turtles nesting on their beaches. Like other sea turtles, green sea turtles migrate long distances between feeding grounds and hatching beaches. The turtles bite off the tips of the blades of seagrass, which keeps the grass healthy. The adults usually inhabit shallow lagoons, feeding mostly on various species of seagrasses. Unlike other members of its family, such as the hawksbill sea turtle, C. It is usually lightly colored, although in the eastern Pacific populations, parts of the carapace can be almost black. mydas is covered by a large, teardrop-shaped carapace it has a pair of large, paddle-like flippers. The common name refers to the usually green fat found beneath its carapace, not to the color of its carapace, which is olive to black. Its range extends throughout tropical and subtropical seas around the world, with two distinct populations in the Atlantic and Pacific Oceans, but it is also found in the Indian Ocean. It is the only species in the genus Chelonia. The green sea turtle ( Chelonia mydas), also known as the green turtle, black (sea) turtle or Pacific green turtle, is a species of large sea turtle of the family Cheloniidae.
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