Spectacled slender opossum

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Spectacled slender opossum
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Didelphimorphia
Family: Didelphidae
Genus: Marmosops
Species:
M. ocellatus
Binomial name
Marmosops ocellatus
(Tate, 1931)
Marmosops ocellatus area.png
Spectacled slender opossum range

The spectacled slender opossum (Marmosops ocellatus), also known as little spotted slender opossum is a species in the marsupial genus Marmosops from South America.

Contents

Description

Marmosops ocellatus has sandy grayish-brown dorsal fur and self-cream that lack distinct lateral zones of gray-based hairs. The tail is distinctly bicolored (dark above, pale below) and particolored (paler distally than proximally), such that the distal one-third or more of the organ is completely pale in most specimens. Individuals can range from 20g-40g in weight. [2] [3]

Ecology and population

The spectacled slender opossum inhabits Chiquitania dry forest, a transitional zone between the Cerrado savannah and Amazon rainforest in central and eastern Bolivia and western Brazil. It is found in mature, disturbed, and secondary forests. [3] [4] This species feeds on insects and fruit. It is nocturnal and can climb very well.

Currently Marmosops ocellatus is listed as "least concern" by the IUCN, because of its wide distribution, adaptation to human interference and occurrence in a number of protected areas. [1]

Related Research Articles

<span class="mw-page-title-main">Opossum</span> Family of mammals

Opossums are members of the marsupial order Didelphimorphia endemic to the Americas. The largest order of marsupials in the Western Hemisphere, it comprises 126 species in 18 genera. Opossums originated in South America and entered North America in the Great American Interchange following the connection of North and South America.

<span class="mw-page-title-main">White-bellied woolly mouse opossum</span> Species of marsupial

The white-bellied woolly mouse opossum is a small pouchless marsupial of the family Didelphidae. It was formerly assigned to the genus Micoureus, which was made a subgenus of Marmosa in 2009. The specific epithet was given in honour of Constance Sladen, wife of the naturalist Percy Sladen. She funded the 1902 expedition which collected the type specimen.

<span class="mw-page-title-main">Chacoan pygmy opossum</span> Species of marsupial

The Chacoan pygmy opossum is a recently described genus and species of didelphimorph marsupial. The only species in Chacodelphys, C. formosa, was known until 2004 from only one specimen collected in 1920 in the Chaco of Formosa Province, Argentina. The species is gaining popularity as a pocket pet.

<span class="mw-page-title-main">Bushy-tailed opossum</span> Species of marsupial

The bushy-tailed opossum is an opossum from South America. It was first described by English zoologist Oldfield Thomas in 1912. It is a medium-sized opossum characterized by a large, oval, dark ears, fawn to cinnamon coat with a buff to gray underside, grayish limbs, and a furry tail. Little is known of the behavior of the bushy-tailed opossum; less than 25 specimens are known. It appears to be arboreal (tree-living), nocturnal and solitary. The diet probably comprises insects, eggs and plant material. This opossum has been captured from heavy, humid, tropical forests; it has been reported from Bolivia, Brazil, Colombia, Ecuador and Peru. The IUCN classifies it as least concern.

<span class="mw-page-title-main">White-eared opossum</span> Species of marsupial

The white-eared opossum, known as the timbu and cassaco in northeast Brazil, saruê and sariguê in Bahia, micurê and mucura in northern Brazil and comadreja overa in Argentina, is an opossum species found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. It is a terrestrial and, sometimes, arboreal animal, and a habitat generalist, living in a wide range of different habitats.

<span class="mw-page-title-main">Bare-tailed woolly opossum</span> Species of marsupial

The bare-tailed woolly opossum is an opossum from South America. It was first described by Swedish zoologist Carl Linnaeus in 1758. The bare-tailed woolly opossum is characterized by a gray head, brown to gray coat, orange to gray underside and a partially naked tail. It is nocturnal and solitary; there is hardly any social interaction except between mother and juveniles and in mating pairs. The opossum constructs nests in tree cavities, and its litter size ranges from one to seven. Gestation lasts 25 days, and the juveniles exit the pouch after three months; weaning occurs a month later. The bare-tailed woolly opossum inhabits subtropical forests, rainforests, secondary forests, and plantations; its range extends from northern Venezuela to northeastern and southcentral Brazil. The IUCN classifies this opossum as least concern.

<span class="mw-page-title-main">Brown-eared woolly opossum</span> Species of marsupial

The brown-eared woolly opossum, also known as the western woolly opossum, is an opossum from South America. It was first described by German naturalist Ignaz von Olfers in 1818. The opossum is characterized by a brown to reddish brown coat and similarly colored limbs, yellow to orange underbelly, hairless, brown ears with a hint of pink, and a tail furred on the back for up to half of its length. The brown-eared woolly opossum is nocturnal, solitary and omnivorous. The IUCN lists it as least concern.

<span class="mw-page-title-main">Black-shouldered opossum</span> Species of marsupial

The black-shouldered opossum, also known as the white-eared opossum, is an opossum known from western Brazil and southeastern Peru. It was first described by Colin Campbell Sanborn, curator of Field Museum of Natural History, in 1951. The black-shouldered opossum is characterized by a gray coat, gray underbelly, and broad black stripes that extend from the forefeet, meet on the shoulders, run along the midline of the back and then split into parallel stripes that run down the hind feet. Little is known of the behavior of the black-shouldered opossum. It is nocturnal and arboreal. It is known to feed on fruits and rodents. The opossum inhabits humid forests. The IUCN classifies it as least concern.

<span class="mw-page-title-main">Brazilian gracile opossum</span> Species of marsupial

The Brazilian gracile opossum is a species of small opossum from Brazil.

<span class="mw-page-title-main">Gray slender opossum</span> Species of marsupial

The gray slender opossum, is an opossum species endemic to eastern Brazil.

<span class="mw-page-title-main">White-bellied slender opossum</span> Species of marsupial

The white-bellied slender opossum is a species of opossum from South America. It is found in Bolivia, Brazil, Ecuador and Peru.

<span class="mw-page-title-main">Pygmy short-tailed opossum</span> Species of marsupial

The pygmy short-tailed opossum, scientifically named Monodelphis kunsi, is an opossum species from South America. M. kunsi is a marsupial from the family Didelphidae of the order Didelphimorphia. Although it is a marsupial, it lacks the characteristic pouch that is often associated with this order. It is found in Argentina, Bolivia, Brazil and Paraguay. M. kunsi is considered a smaller species within the family Didelphidae, which is why it is named a pygmy opossum. The young are referred to as 'joeys'. The females are referred to as 'Jill,' and the males 'jack'. It was thought to have been endangered in 2001, but has since been moved to least concern by the International Union for Conservation of Nature.

<i>Marmosops</i> Genus of marsupials

Marmosops is a genus of Neotropical opossums of the family Didelphidae. The genus was originally treated as a subgenus from the genus Marmosa rather than having their own classification. This was changed in 1989 by Gardner and Crieghton, who officially separated the group and made them their own genus. The mix-up between to genera Marmosa and Marmosops was common due to the similar appearances including size and other external features. However, the two groups differ significantly in their integument and in the arrangement of their skull and dentition. The dentition is similar in morphology between the two groups, with the exception of the deciduous lower third premolar varying from one genus to the next. The similarity between the two continues to cause the genus Marmosops to be frequently misidentified due to the lack of knowledge regarding the species along with the overlooked traits that help separate them from other opossums. The Marmosops are also commonly confused with the genus Gracilinanus, but this is quickly ruled out by a large number of differing characteristics. These differences include the arrangement of their digits, caudal scales, and the central hair on the scales changing from a three hairs per follicle to many more. This causes the hair of the Gracilinanus to be thicker and has also found to be heavily pigmented. The last group commonly confused with Marmosops is known as the genus Thylamys. These animals have a contrasting dorsal body pelage and the taxa are actually quite different.

<i>Thylamys</i> Genus of marsupials

Thylamys is a genus of opossums in the family Didelphidae. The premaxillae are rounded rather than pointed. The females lack a pouch. The females' nipples are arranged in two symmetrical rows on the abdomen. All species but T. macrurus store fat in their tails., although this is not necessarily true for all species in the genus. Fossils belonging to the genus date back to the Miocene, with the oldest specimens being found in the Cerro Azul Formation of Argentina and the Honda Group of Colombia. Genetic studies indicate that the genus may have originated around 14 million years ago.

<span class="mw-page-title-main">White-bellied fat-tailed mouse opossum</span> Species of marsupial

The white-bellied fat-tailed mouse opossum is a species of opossum in the family Didelphidae. It is found in Argentina, Bolivia, Chile and Peru.

<i>Gracilinanus</i> Genus of marsupials

Gracilinanus is a genus of opossum in the family Didelphidae. It was separated from the genus Marmosa in 1989, and has since had the genera Cryptonanus, Chacodelphys, and Hyladelphys removed from it.

<span class="mw-page-title-main">Bishop's slender opossum</span> Species of marsupial

Bishop's slender opossum is a small, arboreal marsupial opossum native to Brazil, Peru, and Bolivia. It somewhat resembles a placental rat or shrew.

<span class="mw-page-title-main">Creighton's slender opossum</span> Species of marsupial

Creighton's slender opossum, also known commonly as Voss' slender opossum is a species of South American opossum of the family Didelphidae. It is known only from the valley of the Rio Zongo in La Paz Department, Bolivia, where it lives in Andean cloud forests at elevations between 1800 and 3000 m. It was named after G. Ken Creighton by fellow American zoologist Robert S. Voss.

<span class="mw-page-title-main">Junin slender opossum</span> Species of marsupial

The Junin slender opossum is a species of South American opossum in the family Didelphidae. It is known only from the valley of the Chanchamayu in Peru where it lives in Andean montane forests at elevations between 1460 and 2200 m. The species is threatened by destruction of its forest habitat as the area under cultivation in the region increases.

<span class="mw-page-title-main">Amazonian red-sided opossum</span> Species of marsupial

The Amazonian red-sided opossum is a South American opossum species of the family Didelphidae, formerly viewed as part of M. brevicaudata. It is found in Bolivia, Brazil and Peru, where it inhabits the Amazon rainforest. It is omnivorous, nocturnal, and primarily nonarboreal.

References

  1. 1 2 Tarifa, T. (2016). "Marmosops ocellatus". IUCN Red List of Threatened Species . 2016: e.T136842A22178618. doi: 10.2305/IUCN.UK.2016-1.RLTS.T136842A22178618.en . Retrieved 4 July 2024.
  2. Voss, Robert S. (December 2004). "An Introduction to Marmosops (Marsupialia: Didelphidae), with the Description of a New Species from Bolivia and Notes on the Taxonomy and Distribution of Other Bolivian Forms" (PDF). American Museum Novitates (3466): 1–40. doi:10.1206/0003-0082(2004)466<0001:AITMMD>2.0.CO;2. S2CID   83490188.
  3. 1 2 Semedo, Thiago Borges Fernandes (May 2013). "New records of the Spectacled Slender Opossum Marmosops ocellatus (Didelphimorphia, Didelphidae) with comments on its geographic distribution limits". Mammalia. 77 (2): 72ff. doi:10.1515/mammalia-2012-0072. S2CID   84602782.
  4. Caceres, N.C. (2012). "The occurrence of the mouse opossum Marmosops ocellatus (Marsupialia, Didelphidae) in western Brazil". Mammalian Biology. Archived (PDF) from the original on 2022-10-18 via Academia.