Waterhouse pygmy pouch rat
| Waterhouse pygmy pouch rat | ||||||||||||
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Drawing from the first description |
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| Scientific name | ||||||||||||
| Marmosa waterhousei | ||||||||||||
| ( Tomes , 1860) |
The Waterhouse pygmy pouch rat ( Marmosa waterhousei ) is a species of marsupial that occurs from northwestern Venezuela across the catchment area of Río Magdalena and Río Cauca in Colombia to the east of Ecuador and the northeast of Peru, as well as in an area in northwestern Brazil that occurs in Bounded by the Rio Negro to the north and the Amazon to the south. The species was described in 1860 by the British zoologist Robert Fisher Tomes under the name Didelphis waterhousei and named in honor of his colleague George Robert Waterhouse .
description
The animals reach a head trunk length of 12.2 to 14.9 cm, have a 17.2 to 22.3 cm long tail and reach a weight of 49 to 66 g. The tail is on average around 40% longer than the head and torso combined. The back fur is dark gray-brown with a light brown-orange tinge. A dark stripe in the middle of the back is missing and the middle of the back is lighter than the top of the head. The sides of the body are slightly lighter than the back. Around the eyes there are blackish-brown circles under the eyes that do not reach the bases of the ears. The hairless section of the tail is brown to dark brown and slightly lighter on the underside than on the top. The middle of the abdomen, chest and throat are light or yellowish-cream in color. The sides of the peritoneum, the sides of the neck, the groin, and the insides of the front and rear legs are gray. The front feet are orange to brown, the hind feet are whitish or orange. Females do not have a pouch. The number of teats and the karyotype of the animals are currently unknown.
Habitat and way of life
The Waterhouse pygmy bag rat lives at heights of 50 to 1100 meters in lowland rainforests and in moist mountain forests. So far nothing is known about their behavior, their activity patterns, their diet and their reproductive biology.
status
The IUCN has not yet recorded the Waterhouse pygmy pouch rat as a subspecies of the mouse pygmy pouch rat ( Marmosa murina ) for a long time .
supporting documents
- ↑ 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 140.