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
| 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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