Thick-tailed pouch rats
| Thick-tailed pouch rats | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Thick-tailed pouch rat ( Lutreolina crassicaudata ), stuffed specimen |
||||||||||||
| Systematics | ||||||||||||
|
||||||||||||
| Scientific name | ||||||||||||
| Lutreolina | ||||||||||||
| Thomas , 1910 |
The thick-tailed pouch rats ( Lutreolina ) are a genus of the marsupial mammals from the family of the opossum rats (Didelphidae) with two recent species, the thick-tailed pouch rat ( Lutreolina crassicaudata ) and Massoia's thick-tailed pouch rat ( Lutreolina massoia ).
The first species that belongs to the genus today was described by the French zoologist Anselme Gaëtan Desmarest in 1804 and assigned to the opossums ( Didelphis ). In 1910, the British zoologist Oldfield Thomas introduced the genus Lutreolina , which has remained monotypical for a long time . The thick-tailed pouch rat is divided into two subspecies, the ranges of which are far apart. The nominate form , L. c. crassicaudata , occurs from Bolivia via Paraguay to southern Brazil, Uruguay and the Argentine province of Buenos Aires . L. c. turneri lives in northern Guyana , parts of Venezuela and eastern Colombia. In 2014, Massoia's thick-tailed pouch rat ( Lutreolina massoia ) was described as a second species of thick-tailed pouch rat that occurs in the mountain forests of the Yungas in southern Bolivia ( Chuquisaca and Tarija departments ) and in neighboring Argentina. With Lutreolina materdei an extinct Dickschwanzbeutelrattenart described in 2012 on the basis of a found in the Peruvian Amazon skull fragment in the Miocene lived.
features
Thick-tailed pouch rats reach a head body length of 19 to 40 centimeters, have a 21 to 36 centimeter long tail and reach a weight of 200 to 910 grams. Compared to other larger opossum rat species, the thick-tailed pouch-rat snout is relatively short. Thick-tailed pouch rats are almost monochrome yellowish, olive brown or dark brown in color; only the peritoneum is a little lighter. The thick, body-hugging half or the first third of the tail is hairy and colored like the rest of the fur, the following, hairless section is brown or blackish and the hairless end of the tail is whitish or yellowish. The legs are short, the ears short and rounded. The females of the thick-tailed pouch rats have a pouch.
supporting documents
- ↑ a b c Diego Astúa: Family Didelphidae (Opossums). Page 158 a. 159 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
- ↑ Juan A. Martínez-Lanfranco, David Flores, J. Pablo Jayat, and Guillermo D'Elía: A new species of lutrine opossum, genus Lutreolina Thomas (Didelphidae), from the South American Yungas. Journal of Mammalogy, 95 (2): 225-240. 2014. DOI: 0.1644 / 13-MAMM-A-246
- ↑ Goin, FJ, and M. De Los Reyes. 2012. Contribución al conocimiento de los representantes extintos de Lutreolina Thomas, 1910 (Mammalia, Marsupialia, Didelphidae) . Historia Natural 1: 15-25. PDF