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Genus of mammals From Wikipedia, the free encyclopedia
The red rock hares are the four species in the genus Pronolagus.[3][4] They are African lagomorphs of the family Leporidae.
Pronolagus | |
---|---|
Illustration of P. crassicaudatus from Geoffroy, 1832 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Lagomorpha |
Family: | Leporidae |
Genus: | Pronolagus Lyon, 1904[1][2] |
Type species | |
Lepus crassicaudatus I. Geoffroy, 1832 | |
Species | |
Species in this genus had previously been classified in the genus Lepus, as done by J. E. Gray,[5] or in Oryctolagus, as done by Charles Immanuel Forsyth Major.[6]
The genus Pronolagus was proposed by Marcus Ward Lyon, Jr. in 1904, based on a skeleton that had been labeled Lepus crassicaudatus I. Geoffroy, 1832.[2] Lyon later acknowledged the work of Oldfield Thomas and Harold Schwann, which argued that particular specimen belonged to a species they named Pronolagus ruddi Thomas and Schwann 1905;[7] he wrote that the type species "should stand as Pronolagus crassicaudatus Lyon (not Geoffroy) = Pronolagus ruddi Thomas and Schwann".[8]
P. ruddi is no longer regarded as its own species, but rather a subspecies of P. crassicaudatus.[9][1]
In the 1950s, John Ellerman and Terence Morrison-Scott classified Poelagus as a subgenus of Pronolagus.[10][9] B. G. Lundholm regarded P. randensis as a synonym of P. crassicaudatus.[11] Neither of these classifications received much support.[12]
Previously proposed species in this genus include:
This genus contains the following species:
Image | Common Name | Scientific name | Distribution |
---|---|---|---|
Natal red rock hare | Pronolagus crassicaudatus I. Geoffroy, 1832 | southeastern provinces of South Africa (Eastern Cape, Mpumalanga, and KwaZulu-Natal), eastern Lesotho, Swaziland (Highveld and Lumbobo), and southern Mozambique (Maputo Province). | |
Jameson's red rock hare | Pronolagus randensis Jameson, 1907 | Zimbabwe and Namibia | |
Smith's red rock hare | Pronolagus rupestris A. Smith, 1834 | Kenya (Rift Valley), Lesotho, Malawi, Namibia, Rhodesia, South Africa (Northern Cape, Free State, and North West), Tanzania and Zambia. | |
Hewitt's red rock hare | Pronolagus saundersiae Hewitt, 1927 (used to be included in Pronolagus rupestris[12][18]). | South Africa | |
Some characteristics of animals in this genus include: the lack of an interparietal bone in adults, a mesopterygoid space which is narrower than the minimal length of the hard palate, short ears (63–106 millimetres (2+1⁄2–4+1⁄4 inches)), and the lack of a stripe along its jaw.[19]
A fossil skull of an animal in this genus was found in South Africa; Henry Lyster Jameson named the species Pronolagus intermedius[lower-alpha 1] as it was described as being intermediate between P. crassiacaudatus and P. ruddi.[14]
All species in this genus have 21 pairs of chromosomes (2n = 42).[19][4] The karotype for P. rupestris has been published.[20][21] The Pronolagus chromosomes have undergone four fusions and one fission from the Lagomorpha ancestral state (2n=48), which resembled the karotype of Lepus.[22]
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