Dark slim-pouch rat
| Dark slim-pouch rat | ||||||||||||
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Marmosops fuscatus | ||||||||||||
| ( Thomas , 1896) |
The dark slim- pouch rat ( Marmosops fuscatus , Syn . : Marmosa fuscata , Marmosops cracens ) is a species of marsupial that occurs in the mountains and in the lowlands of northern Venezuela . The species is absent in Colombia. Colombian slim-pouch rats , which were originally assigned to Marmosops fuscatus , belong to Marmosops caucae and Marmosops carri from Trinidad , formerly a subspecies of Marmosops fuscatus , today it is an independent species.
description
The animals reach a head trunk length of about 13.2 to 14 cm, have a tail about 15 cm long and reach a weight of about 70 g. The rear foot length is 20 mm and the ears are approx. 25 mm long. The condylobasal length is 31.8–35.4 mm. The fur is 7 to 9 mm long in the middle of the back in specimens from the Cordillera de Mérida . Animals from lower regions have shorter fur. It is gray-brown to sepia-colored in the middle of the back and becomes significantly lighter towards the sides of the body. The peritoneum is whitish. The belly hairs have gray bases and whitish tips. The tops of the feet are light. The tail, which is about 110% of the length of the head, is dark on the top and significantly lighter on the underside. Females do not have a pouch. The number of teats is unknown. The karyotype consists of a chromosome set of 2n = 14 chromosomes (FN = 24).
Habitat and way of life
The dark slim-pouch rat occurs in evergreen rainforests, mountain and cloud forests up to heights of 2400 meters. They can also be found on clear-cut areas and in gardens and often close to bodies of water or in particularly humid regions. Nothing more is known about their diet, but it can be assumed that, like other slim-pouch rats, they feed on insects and fruits. It is probably nocturnal and lives climbing in shrubs and lianas as well as on the ground. The density of individuals is 25 to 325 specimens per square kilometer. The females give birth to an average of six young animals, with one to two births a year. The young are sexually mature at six months of age.
status
Too little data are available for the IUCN to classify the dark slim-pouch rat in a hazard level. It occurs in various protected areas, but most of its habitat is intensively used by humans and has been converted into arable land.
supporting documents
- ^ 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 35–37.
- ↑ a b c 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 185.
- ↑ Marmosops fuscatus in the endangered Red List species the IUCN 2016 Posted by: Perez-Hernandez, R., Ventura, J. & López Fuster, M., 2015. Retrieved on February 2 of 2019.