Marmosops caucae

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Marmosops caucae
Systematics
Class : Mammals (mammalia)
Subclass : Marsupials (Marsupialia)
Order : Opossum-like (Didelphimorphia)
Family : Opossum rats (Didelphidae)
Genre : Slim-pouch rats ( marmosops )
Type : Marmosops caucae
Scientific name
Marmosops caucae
( Thomas , 1900)

Marmosops caucae is a bag mammal from the genus of the slim- pouch rats ( Marmosops ). The species occurs in the northern Andes from the extreme northwest from Venezuela through Colombia and Ecuador to the north of Peru, as well as in the highlands of Darién in the east of Panama.

features

The so far accurately measured specimens of Marmosops caucae , four females, had total lengths of 24.3 to 26 cm, a 14.2 to 15.7 cm long tail and a weight of 17 to 24 g. The rear foot length is 13 to 16.85 mm and the ears are 17.2 to 18.7 mm long. The condylobasal length is 30.6 to 31.16 mm. The back fur is brown and the belly light to whitish. The females have seven or nine teats, three or four on each side and one in the middle.

Habitat and endangerment

Marmosops caucae occurs in mountain forests of the northern Andes at altitudes of 300 to 3000 meters, as well as in the highlands of Darién above 1400 meters. Nothing is known about the way of life of Marmosops caucae . Due to the large distribution area and the occurrence in numerous protected areas, Marmosops caucae is considered safe (Least Concern).

Systematics

The species was scientifically described in 1900 by the British zoologist Oldfield Thomas and assigned as a subspecies in 1958 by Cabrera Tschudis slim-pouch rat ( Marmosops impavidus ). The opossum expert Juan F. Díaz-Nieto and colleagues revalidated the species in three publications from 2011 and 2016. At least two different forms can be distinguished, which could be classified as subspecies. For a northern subspecies the name M. caucae caucae is available, a southern one would get the name M. caucae madescens .

Individual evidence

  1. ↑ a b c d Marmosops caucae in the endangered Red List species the IUCN 2017 Posted by: Martin, GM, 2016. Retrieved on January 28 of 2019.
  2. ↑ a b c Juan F. Díaz-Nieto, Marcela Gómez-Laverde & Camilo Sánchez-Giraldo: Rediscovery and redescription of Marmosops handleyi (Pine, 1981) (Didelphimorphia: Didelphidae), the least known andean slender mouse opossum. Mastozoologia Neotropical 18 (1): 45-61 June 2011
  3. ^ A b George Henry Hamilton Tate : A systematic revision of the Marsupial Genus Marmosa. Bulletin of the American Museum of Natural History, Volume LXVI, 1933, pp. 179 + 181.
  4. ^ A b Juan F. Díaz-Nieto, Robert S. Voss: A Revision of the Didelphid Marsupial Genus Marmosops, Part 1. Species of the Subgenus Sciophanes. Bulletin of the American Museum of Natural History Number 402: 1-70. 2016, doi: 10.1206 / 0003-0090-402.1.1 . Pages 56–57.
  5. ↑ Oldfield Thomas, 1900. Descriptions of new Neotropical mammals. Annals and Magazine of Natural History 7 (5): 217-222.
  6. ^ A b Juan F. Díaz-Nieto, Sharon A. Jansa, Robert S. Voss: DNA sequencing reveals unexpected Recent diversity and an ancient dichotomy in the American marsupial genus Marmosops (Didelphidae: Thylamyini). Zoological Journal of the Linnean Society 176: 914-940. doi: 10.1111 / zoj.12343

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