Didelphis
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 in North America north of Mexico. The Virginia opossum has opposable toes on their two back feet. Phylogeny. Cladogram of living large American opossums, the genus "Didelphis":