Emilia narrow-pouch rat

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Emilia narrow-pouch rat
Systematics
Class : Mammals (mammalia)
Subclass : Marsupials (Marsupialia)
Order : Opossum-like (Didelphimorphia)
Family : Opossum rats (Didelphidae)
Genre : Gracilinanus
Type : Emilia narrow-pouch rat
Scientific name
Gracilinanus emiliae
( Thomas , 1909)

The Emilia narrow-pouch rat ( Gracilinanus emiliae , synonym: Marmosa emiliae ) lives in the north of Brazil, in the three Guayanas , in Venezuela south and east of the Orinoco , in the southeast of Colombia and in the east of the Peruvian region Loreto .

description

The animals reach a head trunk length of 7.2 to 8.7 cm and have a 12.8 to 15.1 cm long tail and reach a weight of 10 to 14 g. This makes the Emilia narrow-pouch rat the smallest species of the Gracilinanus genus . The tail has a length of 180% of the length of the head body and is therefore one of the longest of all opossum tails in relation to the length of the head body. The back and sides of the body are solid reddish brown, with the base of the hair being gray. The peritoneum and cheeks are whitish or cream-colored. The fur is short and soft. Front and rear paws are cream or whitish. The head is the same color as the back. The eyes are surrounded by dark rings from which runners extend to the nose but not to the bases of the ears. The ears are medium-sized, slightly transparent, opaque at the base and transparent brownish or gray at the top. The tail is monochrome dark brown or gray and only hairy at the base. Females do not have a pouch. The number of teats is nine, four each on the right and left and one in the middle. The Emilia narrow-pouch rat karyotype is unknown.

Habitat and way of life

The Emilia narrow-pouch rat occurs in lowland rainforests, in primary and secondary forests and in gallery forests in areas dominated by savannahs . It is nocturnal and lives climbing trees and bushes. So far, no information is available about their diet, their activity patterns and their reproductive behavior.

status

The IUCN does not state a hazard status for the Emilia narrow-pouch rat because too little data is available for this.

supporting documents

  1. a b c d 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 170.
  2. gracilinanus emiliae in the Red List of Threatened Species of the IUCN 2016. Posted by: Perez-Hernandez, R. Brito, D., Astua de Moraes, D. & Carmignotto, AP, 2015. Accessed January 23, 2020th