Derby's woolly opossum | |
---|---|
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Mammalia |
Order: | Didelphimorphia |
Family: | Didelphidae |
Genus: | Caluromys |
Species: | C. derbianus |
Binomial name | |
Caluromys derbianus (Waterhouse, 1841) |
|
Range of Derby's woolly opossum | |
Synonyms | |
List
|
Derby's woolly opossum (Caluromys derbianus), or the Central American woolly opossum, is an opossum found in deciduous and moist evergreen forests of Central America, from southern Mexico to western Ecuador and Colombia. It was first described by English naturalist George Robert Waterhouse, and named in honor of Edward Smith-Stanley, 13th Earl of Derby. Derby's woolly opossum is the largest in its genus, with a total length of 60 to 70 centimetres (24 to 28 in) and weight between 200 and 400 grams (7.1 and 14.1 oz). The coat is brown and the underside white-buff to golden-brown. The opossum is nocturnal (active mainly at night), arboreal (tree-living) and solitary. Diet consists of fruits, nectar, small invertebrates and vertebrates. The time when breeding takes place varies geographically. The litter size ranges from one to six. The IUCN classifies this opossum as least concern.
Derby's woolly opossum is one of the three members of Caluromys, and is placed in the family Didelphidae. It was first described by English naturalist George Robert Waterhouse as Didelphis derbianus in 1841. He was named in honor of Edward Smith-Stanley, 13th Earl of Derby, to whose museum the specimen used for the description belonged. It was given its present binomial name, Caluromys derbianus, by American zoologist Joel Asaph Allen in 1900. A 1955 revision of marsupial phylogeny grouped Caluromys, Caluromysiops, Dromiciops (monito del monte) and Glironia (bushy-tailed opossum) under a single subfamily, Microbiotheriinae, noting the dental similarities among these. A 1977 study argued that these similarities are the result of convergent evolution, and placed Caluromys, Caluromysiops and Glironia in a new subfamily, Caluromyinae. In another similar revision, the bushy-tailed opossum was placed in its own subfamily, Glironiinae.