Puntilla comb rat

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Puntilla 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 : Puntilla comb rat
Scientific name
Ctenomys coludo
Thomas , 1920

The Puntilla comb rat ( Ctenomys coludo is) Unexplored rodent from the family of tuco-tuco (Ctenomyidae). It occurs in northwest Argentina .

features

The sizes and characteristics are only documented for the holotype , a male. The total length is 302 mm and the tail length is 97 mm. No specific data are available on weight. The puntilla comb rat is a relatively large species, which is characterized by its monochrome pale pale rust-brown fur, the long tail, the narrow skull and the large tympanic membrane. The foch crested rat ( Ctenomys fochi ) and catamarca crested rat ( Ctenomys knighti ), which are geographically close to the puntilla crested rat , have a much darker fur, shorter tail, larger teeth, and a wider forehead region.

Systematics

The puntilla comb rat was described as a separate species by Oldfield Thomas in 1920 . In 1961 she was classified by Ángel Cabrera Latorre as a subspecies Ctenomys fulvus coludo of the long-tailed crested rat ( Ctenomys fulvus ).

After Julio Rafael Contreras , Virgilio Germán Roig, and Cristina Maria Suzarte in 1977, and Carlos A. Galliari , Ulyses FJ Pardiñas, and Francisco Goin pointed out in 1996 that both taxa were synonymous due to a lack of information, the puntilla crested rat received in 2005 again species status in the third edition of Mammal Species of the World . The puntilla crested rat is probably related to the mendocinus species group within the genus.

Distribution area

The terra typica is located in the hilly region of La Puntilla near the city of Tinogasta in the province of Catamarca in northwest Argentina. Locations in other areas are not known.

Habitat and way of life

The puntilla crested rat lives in the Chaco húmedo (humid Gran Chaco ) ecoregion at altitudes of 1000 m. Your way of life is not studied.

Hazard and protection

The puntilla crested rat is known only from eight specimens (six males and two females) that Emilio Budin, an Argentine animal catcher who worked on behalf of Oldfield Thomas, collected in January 1920. Nothing is known about the population status of this species. The IUCN classifies them in the category of “insufficient data” ( data deficient ).

literature

  • Claudio Juan Bidau: Ctenomys culodo Thomas, 1900 In: James L. Patton, Ulyses FJ Pardinas, Guillermo D'Elía (Eds.): Mammals of South America, Volume 2 - Rodents. The University of Chicago Press, Chicago 2015; P. 829, ISBN 978-0-226-16957-6 .
  • Thales Freitas: Family Ctenomyidae (Tuco-tucos). In: Don Ellis Wilson and Russell Mittermeier (Eds.): Handbook of the Mammals of the World. Volume 6: Lagomorphs and Rodents 1 Lynx Edicions, Barcelona 2016, ISBN 978-84-941892-3-4 , p. 530

Web links

Individual evidence

  1. Angel Cabrera: Catalogo de los mamíferos de America del Sur. Revista del Museo Argentino de Ciencias Naturales Bernardino Rivadavia 4, 1961, pp. 309-732.
  2. Julio R. Contreras, Virgilio Germán Roig and Cristina Maria Suzarte: Ctenomys validus, una nueva especie de "tunduque" de la Provincia de Mendoza (Rodentia; Octodontidae). In: Physis, Buenos Aires, sec. C 36 (92), 1977, pp. 159-162.
  3. ^ Carlos A. Galliari, Ulyses FJ Pardiñas and Francisco Goin: Lista comentada de los mam¡feros Argentinos. Mastozoología Neotropical 3 (1), 1996, pp. 39-61.
  4. ^ Charles A. Woods: Suborder Hystricognathi. In: DE Wilson and DM Reeder (eds.): Mammal Species of the World , Smithsonian Institution Press, Washington, DC, USA and London, UK, 2005, pp. 771-806.
  5. 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