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Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Cladus: Synapsida
Cladus: Eupelycosauria
Cladus: Sphenacodontia
Cladus: Sphenacodontoidea
Cladus: Therapsida
Cladus: Theriodontia
Subordo: Cynodontia
Infraordo: Eucynodontia
Cladus: Probainognathia
Cladus: Prozostrodontia
Cladus: Mammaliaformes
Classis: Mammalia
Subclassis: Trechnotheria
Infraclassis: Zatheria
Supercohors: Theria
Cohors: Eutheria
Infraclassis: Placentalia
Cladus: Boreoeutheria
Superordo: Euarchontoglires
Ordo: Rodentia
Subordo: Myomorpha
Superfamilia: Muroidea
Familia: Muridae
Subfamilia: Murinae
Genus: Aethomys
Species: Aethomys ineptus
Name
Aethomys ineptus (Thomas & Wroughton, 1908)
Type locality: Mozambique, Zambezi River, Tette (= Tete); see Chimimba (1998:432) for details.
Synonyms
Aethomys chrysophilus capricornis Roberts, 1926
Aethomys chrysophilus fouriei Roberts, 1946
Aethomys chrysophilus harei Roberts, 1946
Aethomys chrysophilus magalakuini Roberts, 1926
Aethomys chrysophilus tongensis Roberts, 1931
Mus chrysophilus ineptus Thomas & Wroughton, 1908
Mus chrysophilus pretoriae Roberts, 1913
Mus chrysophilus tzaneenensis Jameson, 1909
References
Thomas, O., and R. C. Wroughton, 1908. The Rudd exploration of S. Africa.—X. List of mammals collected by Mr. Grant near Tette, Zambesia. Proceedings of the General Meetings for Scientific Business of the Zoological Society of London, 1908: 546.
Jameson, H. L. 1909. On a collection of mammals from South Africa. Annals and Magazine of Natural History, 4: 460.
Roberts, A. 1913. The collection of mammals in the Transvaal Museum registered up to 31st March 1913 with descriptions of new species. Annals of the Transvaal Museum 4: 85.
Roberts, A. 1926. Some new South African mammals and some changes in nomenclature. Annals of the Transvaal Museum, 11: 245–263.
Roberts, A. 1931. New forms of South African mammals. Annals of the Transvaal Museum, 14: 235.
Roberts, A. 1946. Descriptions of numerous new subspecies of mammals. Annals of the Transvaal Museum, 20: 303–328.
Chimimba, T. C., and A. V. Linzey, 2008. Aethomys ineptus. Mammalian Species, 809: 1–7.
Links
Aethomys ineptus in Mammal Species of the World.
Wilson, Don E. & Reeder, DeeAnn M. (Editors) 2005. Mammal Species of the World – A Taxonomic and Geographic Reference. Third edition. ISBN 0-8018-8221-4.
IUCN: Aethomys ineptus (Thomas & Wroughton, 1908) (Least Concern)
Vernacular names
English: Tete Veld Aethomys
The Tete veld aethomys or Tete veld rat (Aethomys ineptus) is a species of rodent in the family Muridae.[2] It is found in South Africa and Eswatini. Its natural habitats are temperate forests, shrubland, and grassland. The common name refers to the type locality, Tete, on the Zambesi River.
Contents
1 Description
2 Distribution and habitat
3 Biology and behaviour
4 References
Description
The Tete veld rat is moderately sized, with a head-body length of 12 to 18 cm (4.7 to 7.1 in), an almost hairless tail measuring 14 to 17 cm (5.5 to 6.7 in), and a weight of 65 to 107 g (2.3 to 3.8 oz). The fur is reddish-brown over most of the body, but ticked with blackish hairs, giving an overall shade varying from brown to cinnamon. The underparts are white or very pale grey, with the fur being sharply demarcated from that on the rest of the body.[3]
Tete veld rats are physically indistinguishable from the closely related red rock rats, and were thought to represent a subspecies of the latter until as recently as 1998.[4] In that year, genetic analysis revealed that the two species were distinct, making the Tete veld rat an example of a cryptic species. Other than analysis of chromosomes or mitochondrial DNA, the two species can only be reliably distinguished by the shape of their spermatozoa, which have an unusual spatulated shape in Tete veld rats.[3]
Distribution and habitat
Because of the extreme physical similarity between Tete veld rats and red rock rats, the exact range of the latter is unclear, and some areas may exist where both species are found together. However, the current best estimate suggests that Tete veld rats are found in Eswatini and northeastern South Africa, where they are found in the North West, Limpopo, Mpumalanga, Gauteng, and KwaZulu-Natal provinces, and the northern part of Free State province. They may also be found in some neighbouring regions of Mozambique and Botswana, although this has yet to be confirmed.[1][3] They prefer environments with substantial cover, whether from low-lying vegetation or rocky outcrops. While they are typically found at elevations of over 1,000 m (3,300 ft), they can also be found at much lower altitudes, including coastal forests near Durban.[3]
Although up to eight subspecies have previously been recognised, some evidence indicates a gradual clinal change in physical features with latitude, meaning these subspecies may not be distinct and that the Tete veld rat is monotypic.[5]
Biology and behaviour
Tete veld rats are nocturnal and primarily herbivorous, feeding on a mix of vegetation, especially including seeds, although insects form up to 9% of their diet.[3] Individuals inhabit nonexclusive home ranges between 1,500 and 3,000 m2 (16,000 and 32,000 sq ft),[6] and the population density is relatively low, typically less than 18/ha (7.3/acre).[3] It has been reported to be semi-arboreal in habits.[7]
The rats breed in the summer and autumn,[8] and may give birth to up to two litters a year. Litters consist of up to three young.[3] Based on the relatively small size of the male's testes, they have been suggested to be monogamous, with little competition between males.[9]
References
Child, M.F. (2016). "Aethomys ineptus". IUCN Red List of Threatened Species. 2016: e.T44990A50596693. doi:10.2305/IUCN.UK.2016-3.RLTS.T44990A50596693.en. Retrieved 13 November 2021.
Musser, G.G.; Carleton, M.D. (2005). "Superfamily Muroidea". In Wilson, D.E.; Reeder, D.M (eds.). Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 894–1531. ISBN 978-0-8018-8221-0. OCLC 62265494.
Chimimba, C.T. & Linsey, A.V. (2008). "Aethomys ineptus (Rodentia: Muridae)". Mammalian Species. 809: Number 809: pp. 1–7. doi:10.1644/809.1.
Chimimba, C.T. (1998). "A taxonomic synthesis of southern African Aethomys (Rodentia: Muridae) with a key to species". Mammalia. 62 (3): 427–437. doi:10.1515/mamm.1998.62.3.427. S2CID 84622122.
Chimimba, C.T. (2001). "Geographic variation in the Tete veld rat Aethomys ineptus (Rodentia: Muridae) from southern Africa". Journal of Zoology. 254 (1): 77–89. doi:10.1017/S0952836901000577.
Kern, N.G. (1981). "The influence of fire on populations of small mammals of the Kruger National Park". Koedoe. 24 (1): 125–157. doi:10.4102/koedoe.v24i1.624.
Monadjem, A. (1998). "Relative brain size of some southern African myomorph rodents". African Journal of Zoology. 33 (1): 47–49. doi:10.1080/02541858.1998.11448541.
Muteka, S.P.; et al. (2006). "Reproductive seasonality in the Tete veld rat (Aethomys ineptus) (Rodentia: Muridae) from southern Africa". Journal of Zoology. 270 (2): 314–322. doi:10.1111/j.1469-7998.2006.00140.x.
Breed, W.G. (1995). "Spermatozoa of murid rodents from Africa: morphological diversity and evolutionary trends". Journal of Zoology. 237 (4): 625–651. doi:10.1111/j.1469-7998.1995.tb05019.x.
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