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Chelonoidis niger guentheri, commonly known as the Sierra Negra giant tortoise or Günther's giant tortoise, is a subspecies of Galápagos tortoise endemic to the Galápagos archipelago in the eastern Pacific Ocean. The specific epithet guentheri honours zoologist Albert Günther.
Tortoise numbers declined from over 250,000 in the 16th century to a low of around 15,000 in the 1970s. [6] This decline was caused by overexploitation of the subspecies for meat and oil, habitat clearance for agriculture, and introduction of non-native animals to the islands, such as rats, goats, and pigs. The extinction of most giant tortoise ...
Chelonoidis niger vandenburghi, also known as the Volcán Alcedo giant tortoise, the Alcedo Volcano giant tortoise or the Alcedo giant tortoise, is a subspecies of Galápagos tortoise endemic to the Galápagos archipelago in the equatorial eastern Pacific Ocean. The specific epithet vandenburghi honours American herpetologist John Van Denburgh. [3]
The Floreana giant tortoise (Chelonoidis niger niger), also known as the Charles Island giant tortoise, is a subspecies of the Galápagos tortoise endemic to the Galápagos archipelago in the equatorial eastern Pacific Ocean. The specific epithet niger (‘black’) probably refers to the colouration of the holotype specimen. [2]
C. n. duncanensis – Pinzon Island giant tortoise [2] C. n. guntheri – Sierra Negra giant tortoise [2] C. n. hoodensis – Hood Island giant tortoise [2] C. n. microphyes – Volcán Darwin giant tortoise [2] † C. n. niger – Floreana giant tortoise (driven to extinction in the mid-19th century, but could be bred back from hybrids) [2]
Chelonoidis niger vicina, commonly known as the Cerro Azul giant tortoise, Iguana Cove tortoise or the Isabela Island giant tortoise, is a subspecies of Galápagos tortoise endemic to Isabela Island in the Galápagos.
Chelonoidis niger microphyes, also known as the Volcán Darwin giant tortoise, Darwin Volcano giant tortoise or Tagus Cove giant tortoise, is a subspecies of Galápagos tortoise endemic to the Galápagos archipelago in the equatorial eastern Pacific Ocean.
Chelonoidis niger chathamensis, commonly known as the Chatham Island giant tortoise or the San Cristóbal giant tortoise, is a subspecies of Galápagos tortoise endemic to San Cristóbal Island in the Galápagos.