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Peroryctes raffrayana
Raffray's bandicoot


By Karen Kennedy

Kingdom: Animalia
Phylum: Chordata
Subphylum: Vertebrata
Class: Mammalia
Order: Peramelemorphia
Family: Peramelidae
Genus: Peroryctes
Species: Peroryctes raffrayana

Geographic Range

Perorctyes raffrayana is widespread throughout the island of New Guinea.

Biogeographic Regions
oceanic islands (Native )

Habitat

Peroryctes raffrayana usually inhabit undisturbed rainforest and are commonly found in a range of elevations from 850-1200 m. They also sometimes are found in higher and lower areas, with the exceptions of the woodlands and savannah of southern New Guinea and extreme low-lying areas (Flannery, 1996).

Terrestrial Biomes
forest ; mountains

Physical Description

Range mass
0.65 to 1 kg
(1.43 to 2.20 lb)

Raffray's Bandicoots have an unpatterned, medium to dark brown coat and coarse fur. They are approximately 30 cm in length. Their snout is long and narrow, and they have insectivore-like dentition, small ears, and a long non-prehensile tail. The hindfoot is highly specialized and elongated for running and hopping, with reduction in the number of digits in both the forefoot and hindfoot (Vaughan, 1986). Peroryctes raffrayana can be distinguished from other species of bandicoots by their smaller size, darker coloration, and lack of a white tail tip (Flannery, 1996).

Reproduction

Average number of offspring
3
[External Source: AnAge]

Average age at sexual or reproductive maturity (female)
Sex: female

90 days
[External Source: AnAge]

Average age at sexual or reproductive maturity (male)
Sex: male

150 days
[External Source: AnAge]

Raffray's Bandicoots have a short gestation period (about 15 days), and their young mature rapidly, nursing for approximately 60 days. A true chorioallantoic placenta develops, as in all Peramelidae (Vaughan, 1986). Peroryctes raffrayana are polyestrous, and usually have a litter of between one and six young. Young Raffray's Bandicoots forage with their mothers for a few nights after weaning, then separate to lead a solitary life (Stonehouse, 1977).

Lifespan/Longevity

Typical lifespan
Status: captivity

3 (low) years
[External Source: AnAge]

Range lifespan
Status: captivity

3.2 (high) years
[External Source: AnAge]

Behavior

Most P. raffrayana build ground nests of twigs, grass, and debris, often in thick vegetation. Although most animals of the order Peramelemorphia are territorial and solitary except during breeding seasons, female Raffray's Bandicoots have been observed nesting communally. Males range widely over areas inhabited by several females. There is no association between the sexes until periods of estrus (Stonehouse, 1977). P. raffrayana rarely ventures into new forest or regrowth areas. They are creposcular, with most feeding taking place between 7 and 9 p.m. (Flannery, 1996).

Food Habits

Peroryctes raffrayana is largely insectivorous and omnivorous, sometimes eating small vertebrates, invertebrates, and vegetation. Mianmin hunters observe that the fruiting fig Amomeam is a favored food(Flannery, 1996).

Economic Importance for Humans: Positive

Raffray's Bandicoots are hunted and eaten by the natives of New Guinea (Lawlor, 1979).

Conservation Status

IUCN Red List [Link]
Lower Risk - Least Concern

Populations of P. raffrayana are secure. One subspecies, Peroryctes raffrayana rothschildi, has been identified in the Huon Peninsula of New Guinea (Flannery, 1996).

Other Comments

Raffray's bandicoots have a distinct odor similar to aged cheddar cheese. The life expectancy of P. raffrayana is approximately 2.5-3.5 years (Flannery, 1996).

For More Information

Find Peroryctes raffrayana information at

Contributors

Karen Kennedy (author), University of Michigan.

References

Flannery, T. 1996. Mammals of New Guinea. Robert Brown and Associates Ptn. Ltd.: Carina Qld, Australia.

Lawlor, T. 1979. Handbook to the Orders and Families of Living Mammals. Mad River Press: Eureka, California.

Stonehouse, B., ed.; Gilmore, D., ed. 1977. The Biology of Maruspials. University Park Press: Baltimore.

Vaughan, T. 1986. Mammalogy. Saunders College Publishing.

To cite this page: Kennedy, K. 1999. "Peroryctes raffrayana" (On-line), Animal Diversity Web. Accessed February 12, 2012 at http://animaldiversity.ummz.umich.edu/site/accounts/information/Peroryctes_raffrayana.html

Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesn't cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control.

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