Natterer comb rat

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Natterer comb rat
Systematics
Subordination : Porcupine relatives (Hystricomorpha)
Partial order : Hystricognathi
without rank: Guinea Pig Relatives (Caviomorpha)
Family : Comb rats (Ctenomyidae)
Genre : Comb rats ( Ctenomys )
Type : Natterer comb rat
Scientific name
Ctenomys nattereri
Wagner , 1848

The natterer comb rat ( Ctenomys nattereri ) is a species of the comb rats . The species lives in the southwest of Brazil and in the east of Bolivia .

features

The Natterer comb rat has an average head-trunk length of around 24.5 centimeters and a tail length of 7.1 centimeters, weight information is not available. The ear length is 11 millimeters, the rear foot length 54 millimeters including the claws. It is a comparatively large species of the genus. The fur on the back is a monochrome, shiny brown, and an indistinct row of black spots runs along the spine from the head over the back. The latter is more strongly developed than the Bolivian comb rat. The ventral side is black with individual white spots, especially in the armpits and groin area . The head and muzzle are relatively wide and flat. The rhinarium is almost completely hairless, the eyes and ear openings are small. The incisors are very wide and coated with saffron-red enamel .

The karyotype consists of a chromosome set of 2n = 36 chromosomes (FN = 64).

distribution

The Natterer comb rat lives in the southwest of Brazil in Rondônia and Mato Grosso as well as in the east of Bolivia in the department Santa Cruz .

Way of life

Little information is available about the way of life and the habitats of the species. Like all comb rats, it probably lives solitary and terrestrial and digs burrows in the ground. A single excavated structure had a length of four to six meters and reached a depth of 2 to 4 meters. It ended up blind in a single cavity with no nest.

It occurs mainly in regions with manioc cultivation and feeds on underground tubers and roots.

Systematics

The Natterer comb rat is classified as an independent species within the genus of the comb rats ( Ctenomys ), which consists of about 70 species. The first scientific description of the species comes from Johann Andreas Wagner from 1848, who described it using individuals from "Caissora" in Mato Grosso. It is named after the Austrian zoologist Johann Baptist Natterer , who brought the type specimens from his Austrian expedition to Brazil from Bolivia and handed them over to the kk Naturalien-Kabinett Vienna . Wagner described the animals as a form of the Brazilian crested rat ( Ctenomys brasiliensis ), but pointed out the differences and suggested the name Ctenomys nattereri , which is still valid today, as a name to be used "temporarily".

The species was partially considered a subspecies of the Bolivian crested rat ( Ctenomys boliviensis ). It is differentiated from this according to molecular biological data, but placed in a closer relationship and assigned to the boliviensis species group within the genus. As a sister species that was two-colored comb rat ( Ctenomys bicolor ) identified.

Apart from the nominate form, no further subspecies are distinguished within the species .

Status, threat and protection

The Natterer comb rat is not regarded as a separate species by the International Union for Conservation of Nature and Natural Resources (IUCN) and is treated in the entry for the Bolivian comb rat. This is listed as not endangered.

supporting documents

  1. ↑ a b c d e f g h i j Natterer's Tuco-tuco. In: TRO Freitas: Family Ctenomyidae In: Don E. Wilson, TE Lacher, Jr., Russell A. Mittermeier (editor): Handbook of the Mammals of the World: Lagomorphs and Rodents 1. (HMW, Volume 6) Lynx Edicions, Barcelona 2016, p. 514. ISBN 978-84-941892-3-4 .
  2. ↑ a b Scott Lyell Gardner, Jorge Salazar-Bravo, Joseph A. Cook: New Species of Ctenomys Blainville 1826 (Rodentia: Ctenomyidae) from the Lowlands and Central Valleys of Bolivia. Faculty Publications on the Harold W. Manter Laboratory of Parasitology, Special Publications, Museum of Texas Tech University 62, 2014; Pp. 1-34; Full text .
  3. ^ A b Johann Andreas Wagner: Contributions to the knowledge of the types of Ctennomys. Archives for Natural History 14 (1), 1848; Pp. 72-78. ( biodiversitylibrary.org digitized version )
  4. ^ "Natterer" In: Bo Beolens, Michael Grayson, Michael Watkins: The Eponym Dictionary of Mammals. Johns Hopkins University Press, 2009; P. 289; ISBN 978-0-8018-9304-9 .
  5. ↑ Ctenomys boliviensis nattereri . In: Don E. Wilson , DeeAnn M. Reeder (Eds.): Mammal Species of the World. A taxonomic and geographic Reference. 2 volumes. 3. Edition. Johns Hopkins University Press, Baltimore MD 2005, ISBN 0-8018-8221-4 .
  6. ↑ Andrés Parada, Guillermo D'Elía, Claudio J. Bidau, Enrique P. Lessa: Species groups and the evolutionary diversification of tuco-tucos, genus Ctenomys (Rodentia: Ctenomyidae). Journal of Mammalogy 92 (3), June 9, 2011; Pp. 671-682. doi : 10.1644 / 10-MAMM-A-121.1
  7. ↑ Ctenomys boliviensis in the endangered Red List species the IUCN 2018 Posted by: J. Dunnum, N. Bernal, 2016. Retrieved on 3 February of 2019.

literature

  • Natterer's tuco-tuco. In: TRO Freitas: Family Ctenomyidae In: Don E. Wilson, TE Lacher, Jr., Russell A. Mittermeier (editor): Handbook of the Mammals of the World: Lagomorphs and Rodents 1. (HMW, Volume 6) Lynx Edicions, Barcelona 2016, p. 514. ISBN 978-84-941892-3-4 .