Bandicoot

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Bandicoots
Temporal range: Late Oligocene - Recent Late Oligocene–Recent
Perameles gunni.jpg
Eastern barred bandicoot (Perameles gunni)
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Clade: Agreodontia
Order: Peramelemorphia
Superfamilies, etc.

See text.

Bandicoots are a group of more than 20 species of small to medium-sized, terrestrial, largely nocturnal marsupial omnivores in the order Peramelemorphia. [1] They are endemic to the AustraliaNew Guinea region, including the Bismarck Archipelago to the east and Seram and Halmahera to the west.

Etymology

The bandicoot is a member of the order Peramelemorphia, and the word "bandicoot" is often used informally to refer to any peramelemorph, such as the bilby. [2] The term originally referred to the unrelated Indian bandicoot rat from the Telugu word pandikokku (పందికొక్కు) wherein pandi means pig and kokku means rat. [3]

Characteristics

Bandicoots have V-shaped faces, ending with their prominent noses similar to proboscis. These noses make them, along with bilbies, similar in appearance to elephant shrews and extinct leptictids, and they are distantly related to both mammal groups. With their well-attuned snouts and sharp claws, bandicoot are fossorial diggers. They have small but fine teeth that allow them to easily chew their food. [4]

Like most marsupials, male bandicoots have bifurcated penises. [5]

The embryos of bandicoots have a chorioallantoic placenta that connects them to the uterine wall, in addition to the choriovitelline placenta that is common to all marsupials. [6] However, the chorioallantoic placenta is small compared to those of the Placentalia, and lacks chorionic villi.

Bandicoots can reach 11 to 31 in (28 to 79 cm) in length, and 0.4 to 3.5 lb (0.18 to 1.6 kg) in weight. A bandicoot has a long, pointed snout, large ears, a short body, and a long tail. Its body is covered with fur that can be brown, black, golden, white, or grey in colour. Bandicoots have strong hind legs well adapted for jumping.

Bandicoots also have low body temperatures and low basal metabolic rates which aides their survival in hot and dry climates. They also have low total water evaporative rate and effective panting mechanisms which further aide their survival in hotter temperatures. [7]

Classification

Classification within the Peramelemorphia was previously thought to be straightforward, with two families in the order—the short-legged and mostly herbivorous bandicoots, and the longer-legged, nearly carnivorous bilbies. In recent years, however, the situation clearly has become more complex. First, the bandicoots of the New Guinean and far-northern Australian rainforests were deemed distinct from all other bandicoots and were grouped together in the separate family Peroryctidae. More recently, the bandicoot families were reunited in the Peramelidae, with the New Guinean species split into four genera in two subfamilies, Peroryctinae and Echymiperinae, while the "true bandicoots" occupy the subfamily Peramelinae. The only exception is the now-extinct pig-footed bandicoot, which has been given its own family, Chaeropodidae.

Vernacular names

Bandicoots in bronze at the Waratah Mills light rail stop on Sydney's Inner West Light Rail line; public art by Ochre Lawson Bandicoots by Ochre Lawson at Waratah Mills station.jpg
Bandicoots in bronze at the Waratah Mills light rail stop on Sydney's Inner West Light Rail line; public art by Ochre Lawson

The name bandicoot is an Anglicised version of a word from the Telugu language of South India which translates as 'pig-rat'. What are now called bandicoots are not found in India and bandicoot was originally applied to completely unrelated mammals—several species of large rats (rodents). Today, these species, belonging to the genera Bandicota and Nesokia , are referred to as bandicoot rats.

Blust [17] [18] [19] [20] reconstructs the form *mansar or *mansər 'bandicoot' for Proto-Central–Eastern Malayo-Polynesian (i.e., the reconstructed most recent common ancestor of the Central–Eastern Malayo-Polynesian languages) from related words like Oceanic Motu mada and Fijian gwaca, [21] but the validity of this reconstruction is doubted by Schapper (2011). [22] It is known as aine in the Abinomn language of Papua, Indonesia. [23]

Bandicoots have different names by the indigenous peoples of the Australia-New Guinea region. For example, the Kaurna people refer to the southern brown bandicoot as the bung or the marti. [24] [25]

Related Research Articles

<i>Macrotis</i> Genus of mammals

Macrotis is a genus of desert-dwelling marsupial omnivores known as bilbies or rabbit-bandicoots; they are members of the order Peramelemorphia. At the time of European colonisation of Australia, there were two species. The lesser bilby became extinct in the 1950s; the greater bilby survives but remains endangered. It is currently listed as a vulnerable species. The greater bilby is on average 55 cm (22 in) long, excluding the tail, which is usually around 29 cm (11 in) long. Its fur is usually grey or white; it has a long, pointy nose and very long ears, hence the reference of its nickname to rabbits.

<span class="mw-page-title-main">Greater bilby</span> Species of marsupial

The greater bilby, or simply bilby, is a long-eared, rabbit-like mammal native to Australia. It lives in burrows and is active at night, feeding on insects, fruit, or fungi. The bilby is a marsupial and carries its young in a pouch. Threats include habitat loss, disease, and introduced predators such as foxes. Formerly widespread, bilbies are now restricted to arid parts of northwestern and central Australia.

<span class="mw-page-title-main">Peramelemorphia</span> Order of mammals

The order Peramelemorphia includes the bandicoots and bilbies. All members of the order are endemic to Australia-New Guinea and most have the characteristic bandicoot shape: a plump, arch-backed body with a long, delicately tapering snout, very large upright ears, relatively long, thin legs, and a thin tail. Their size varies from about 140 grams up to 4 kilograms, but most species are about one kilogram.

<span class="mw-page-title-main">Thylacinidae</span> Extinct family of marsupials

Thylacinidae is an extinct family of carnivorous marsupials from the order Dasyuromorphia. The only species to survive into modern times was the thylacine, which became extinct in 1936.

<span class="mw-page-title-main">Australidelphia</span> Superorder of marsupials

Australidelphia is the superorder that contains roughly three-quarters of all marsupials, including all those native to Australasia and a single species — the monito del monte — from South America. All other American marsupials are members of the Ameridelphia. Analysis of retrotransposon insertion sites in the nuclear DNA of a variety of marsupials has shown that the South American monito del monte's lineage is the most basal of the superorder.

<i>Chaeropus</i> Extinct genus of marsupials

Chaeropus, known as the pig-footed bandicoots, is a genus of small marsupials that became extinct during the 20th century. They were the only members of the family Chaeropodidae in order Peramelemorphia, with unusually thin legs, yet were able to move rapidly. Two recognised species inhabited dense vegetation on the arid and semiarid plains of Australia. The genus' distribution range was later reduced to an inland desert region, where it was last recorded in the 1950s; it is now presumed extinct.

<span class="mw-page-title-main">New Guinean long-nosed bandicoot</span> Genus of marsupials

The New Guinean long-nosed bandicoots are members of the order Peramelemorphia. They are small to medium-sized marsupial omnivores native to New Guinea.

<i>Perameles</i> Genus of marsupials

Perameles is a genus of marsupials of the order Peramelemorphia. They are referred to as long-nosed bandicoots or barred bandicoots.

<span class="mw-page-title-main">Short-nosed bandicoot</span> Genus of marsupials

The short-nosed bandicoots are members of the order Peramelemorphia. These marsupials can be found across Australia, although their distribution can be patchy. Genetic evidence suggests that short-nosed bandicoots diverged from the related long-nosed species around eight million years ago, during the Miocene epoch, and underwent a rapid diversification around three million years ago, during the late Pliocene.

<span class="mw-page-title-main">Peramelidae</span> Family of marsupials

The marsupial family Peramelidae contains the extant bandicoots. They are found throughout Australia and New Guinea, with at least some species living in every available habitat, from rainforest to desert. Four fossil peramelids are described. One known extinct species of bandicoot, the pig-footed bandicoot, was so different from the other species, it was recently moved into its own family.

<span class="mw-page-title-main">Southern brown bandicoot</span> Species of marsupial

The southern brown bandicoot is a short-nosed bandicoot, a type of marsupial, found mostly in southern Australia. A subspecies in Western Australia was also known as the quenda in South Western Australia. This subspecies was elevated to species in 2018.

Yarala is a genus of fossil mammals that resemble contemporary bandicoots. The superfamily Yaraloidea and family Yaralidae were created following the discovery of the type species Yarala burchfieldi in 1995, on the basis that it lacks synapomorphies that unite all other peramelemorphian taxa.

<span class="mw-page-title-main">Macropodiformes</span> Suborder of marsupials

The Macropodiformes, also known as macropods, are one of the three suborders of the large marsupial order Diprotodontia. They may in fact be nested within one of the suborders, Phalangeriformes. Kangaroos, wallabies and allies, bettongs, potoroos and rat kangaroos are all members of this suborder.

<span class="mw-page-title-main">Long-nosed echymipera</span> Species of marsupial

The long-nosed echymipera, or long-nosed spiny bandicoot, is a species of marsupial in the family Peramelidae. It is found in Australia, Indonesia, and Papua New Guinea. Its natural habitat is subtropical or tropical dry forests.

<span class="mw-page-title-main">Phalangeridae</span> Family of marsupials native to Australia, New Guinea, and Eastern Indonesia

The Phalangeridae are a family of mostly nocturnal marsupials native to Australia, New Guinea, and Eastern Indonesia, including the cuscuses, brushtail possums, and their close relatives. Considered a type of possum, most species are arboreal, and they inhabit a wide range of forest habitats from alpine woodland to eucalypt forest and tropical jungle. Many species have been introduced to various non-native habitats by humans for thousands of years.

Galadi is an extinct genus of predatory bandicoot from Oligo-Miocene deposits of Riversleigh, northwestern Queensland, Australia. It was first named by K.J. Travouillon, Y. Gurovich, R.M.D. Beck and J. Muirhead in 2010 and the type species is Galadi speciosus; additional three species, G. adversus, G. amplus and G. grandis, were described in 2013. The genus is represented by three well-preserved skulls and several isolated maxillae and dentaries. Its body mass would have been close to two pounds, making it relatively large for its family. The combination of body size, robustness and short, stout skull indicates that Galadi would have been able to take relatively large prey for its size, though the morphology of its molars indicates it may have been omnivorous.

Bulungu is an extinct genus of bandicoot-like mammal from Oligo-Miocene deposits of Riversleigh, northwestern Queensland, and the Etadunna Formation, Australia. It was first named by Gurovich et al. (2013) and the type species is Bulungu palara. Two additional species, Bulungu campbelli and Bulungu minkinaensis, were also described in 2013. Bulungu muirheadae is the oldest fossil bandicoot recovered to date. An additional three species Bulungu minkinaensis, Bulungu pinpaensis, and Bulungu westermani were named by Travouillon, Beck & Case (2021) allowing for placement of the genus in the superfamily Yaraloidea.

<i>Crash bandicoot <span style="font-style:normal;">(species)</span></i> Fossil species of marsupial

Crash bandicoot is an extinct bandicoot, known from fossils located at the Riversleigh World Heritage Area in northeast Australia.

Liyamayi dayi is a mammal species of the Thylacomyidae family known from fossils located at the Riversleigh World Heritage Area in northeast Australia. The discovery of the specimens was identified as deposited around fifteen million years ago, revising the earliest record of this peramelemorphian lineage from those of species that existed around ten million years later.

References

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