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The species was first named Rhinoceros bicornis by Carl Linnaeus in the 10th edition of his Systema naturae in 1758. The name means "double-horned rhinoceros". There is some confusion about what exactly Linnaeus conceived under this name as this species was probably based upon the skull of a single-horned Indian rhinoceros (Rhinoceros unicornis), with a second horn artificially added by the ...
The south-central black rhinoceros (Diceros bicornis minor), also known as the south-central hook-lipped rhinoceros or the lesser black rhino, is a subspecies of the black rhinoceros. In keeping with the rules of zoological nomenclature, the south-central black rhinoceros should be known as Diceros bicornis keitloa (Smith, 1836), a nomen novum. [3]
The southern black rhinoceros, southern hook-lipped rhinoceros or Cape rhinoceros (Diceros bicornis bicornis) is an extinct subspecies of the black rhinoceros that was once abundant in South Africa from the Cape Province to Transvaal, southern Namibia, and possibly also Lesotho and southern Botswana.
As the black rhinoceros population is extirpated in most of these areas, the status of the latter subspecies is unclear. Some animals of the Kenyan population may belong to it. These black rhinos were examined by Benson and others through the Kenya Wildlife Service and had an article published by the African Journal of Ecology (Benson, 1, 791).
The IUCN considers the living northern Namibian black rhino populations to belong to the subspecies D. bicornis bicornis, and does not recognize a separate D. b. occidentalis. [1] This synonymy, based upon du Toit (1987) [6] was, however, considered erroneous by Groves and Grubb (2011), and D. b. occidentalis was re-established as a valid ...
The western black rhino emerged about seven to eight million years ago. It was a sub-species of the black rhino. For much of the 20th century, its population was the highest out of all of the rhino species, at almost 850,000 individuals. There was a 96% population decline in black rhinos, including the western black rhino, between 1970 and 1992.
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