see text Monodelphis is a genus of marsupials in the family Didelphidae, commonly referred to as short-tailed opossums.

[1] M. emiliae M. scalops M. theresa M. dimidiata M. sorex M. gardneri M. iheringi M. americana M. umbristriata M. kunsi M. reigi M. adusta M. peruviana M. handleyi M. osgoodi M. domestica M. glirina M. sanctaerosae M. arlindoi M. alstoni M. touan M. brevicaudata M. palliolata Species limits are based on fur coloration with additional details coming from differences in the skull and teeth.

[5] Short-tailed opossums have been found to use nuzzling in chemosensory and exploratory behavior for recognizing individuals of the same species.

This may be related to the shorter longevity of the species of Monodelphis compared to other marsupials who nurse for a longer period.

[7] M. dimidiata is unusual in that it is a semelparous species, something rarely seen in mammals, being found predominantly in smaller didelphids and dasyurids.