Cinderella fat-tailed pouch rat

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Cinderella fat-tailed pouch rat
Systematics
Class : Mammals (mammalia)
Subclass : Marsupials (Marsupialia)
Order : Opossum-like (Didelphimorphia)
Family : Opossum rats (Didelphidae)
Genre : Fat- tailed pouch rats ( Thylamys )
Type : Cinderella fat-tailed pouch rat
Scientific name
Thylamys venustus
( Thomas , 1902)

The Cinderella fat- tailed pouch rat ( Thylamys venustus ) occurs in Bolivia in the departments of Cochabamba , Chuquisaca , Tarija and in the west of Santa Cruz , as well as in northwest Argentina in the provinces of Jujuy and Tucumán .

description

The distribution area in the central Andean region

The animals reach a head trunk length of 8.4 to 11 cm, have a 11.1 to 13.8 cm long tail and reach a weight of 12 to 26.5 g. The tail is usually 130% of the length of the head body. It is brown on the top and gray on the bottom and can serve as a fat store. The fur on the back and the top of the head are gray-brown to cinnamon-brown. As usual with fat-tailed rats, the hair is banded with three different color zones. The hair of the peritoneum is gray at the base and whitish or yellowish at the tips. The eyes are surrounded by black rings. The ears are large and light brown in color. Front and rear paws are whitish. The females do not have a pouch. The number of teats is unknown. The karyotype of the Cinderella fat-tailed pouch rat consists of a chromosome set of 2n = 14 chromosomes (FN = 20).

Habitat and way of life

The Cinderella fat-tailed pouch rat occurs in the humid forests of the Yunga , in the chaparral , in bushy terrain and in man-made land at altitudes of 250 to 4000 meters. So far, no information is available about their diet and activity patterns. Females with young on their teats were caught in February and October, independent young from February to May.

Systematics

The Cinderella fat-tailed rat was first described in 1902 by the British zoologist Oldfield Thomas and assigned to the elegant fat-tailed rat (then Marmosa elegans ) as a subspecies. Today it is considered an independent species and belongs to the genus of the fat- tailed rat ( Thylamys ). Thylamys cinderella is a synonym of the species.

status

The IUCN does not provide any information about a possible endangerment of the Cinderella fat-tailed pouch rat because too little data is available. Their range is partly densely populated by humans and large parts of the habitat have been converted to arable land. There are several protected areas in the distribution area. However, the species has not yet been detected in any.

supporting documents

  1. a b c d e Diego Astúa: Family Didelphidae (Opossums). in Don E. Wilson , Russell A. Mittermeier : Handbook of the Mammals of the World - Volume 5. Monotremes and Marsupials. Lynx Editions, 2015, ISBN 978-84-96553-99-6 . Page 179.
  2. Thylamys venustus in the endangered Red List species the IUCN 2016 Posted by: Flores, D., 2016. Accessed March 15, 2020th