Didelphis

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Didelphis is a genus of New World marsupials. The six species in the genus Didelphis, commonly known as Large American opossums, are members of the opossum order, Didelphimorphia.

The genus Didelphis is composed of cat-sized omnivorous species, which can be recognized by their prehensile tails and their tendency to feign death when cornered. The largest species, the Virginia opossum (Didelphis virginiana), is the only marsupial to be found north of Mexico.

The Virginia opossum has opposable toes on their two back feet.

One of the synapomorphies of this genus is the hypertrophied spinous processes of the cervical vertebrae, which also interlock. As a result, this prevents and movement of the neck. The purpose of this is not yet fully understood.[1]

Phylogeny

Cladogram of living large American opossums, the genus Didelphis:[2][3]

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Species

File:Didelphis sp. 3d scan Natural History Museum University of Pisa C 127.stl
Skeleton of Didelphis sp., 3D model
Image Scientific name Distribution
File:Didelphis albiventris (Lund, 1840) (3453285470).jpg Didelphis albiventris Argentina, Bolivia, Brazil, Paraguay, and Uruguay
File:Saruê comendo manga.jpg Didelphis aurita Argentina, Brazil and Paraguay.
File:Didelphis imperfecta.jpg Didelphis imperfecta Brazil, Suriname, French Guiana and Venezuela.
File:Ser noturno.jpg Didelphis marsupialis northeast of Mexico to Bolivia to the central coast of Peru, including Trinidad and Tobago
File:Didelphis pernigra 29825860.jpg Didelphis pernigra Venezuela to Bolivia
File:Opossum 2.jpg Didelphis virginiana Central America and North America from Costa Rica to southern Ontario

References

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