Order Didelphimorphia Author Alfred L. Gardner text 1993 Smithsonian Institution Press Washington and London Editor Don E. Wilson Editor DeeAnn M. Reeder Mammal Species of the World (2 nd Edition) 15 23 book chapter http://doi.org/10.5281/zenodo.7353070 1-56098-217-9 7353070 Family Didelphidae Gray, 1821 . London Med. Repos., 15:308 . COMMENTS: Placed in the order Polyprotodontia by Kirsch (1977); also see Aplin and Archer (1987) . Does not include Dromiciops ; see Kirsch and Calaby (1977) .