Order Didelphimorphia Author Wilson, Don E. Author Reeder, DeeAnn text 2005 The Johns Hopkins University Press Baltimore Mammal Species of the World: a Taxonomic and Geographic Reference (3 rd Edition), Volume 1 3 18 book chapter 0-8018-8221-4 10.5281/zenodo.7316519 Didelphinae Gray 1821 Didelphinae Gray 1821 , London Med. Repos., 15: 308 . Genera: 14 genera with 82 species: Genus Chironectes Illiger 1811 (1 species with 4 subspecies) Genus Didelphis Linnaeus 1758 (6 species with 6 subspecies) Genus Gracilinanus Gardner and Creighton 1989 (9 species with 2 subspecies) Genus Hyladelphys Voss, Lunde, and Simmons 2001 (1 species) Genus Lestodelphys Tate 1934 (1 species) Genus Lutreolina Thomas 1910 (1 species with 2 subspecies) Genus Marmosa Gray 1821 (9 species with 11 subspecies) Genus Marmosops Matschie 1916 (14 species with 3 subspecies) Genus Metachirus Burmeister 1854 (1 species with 5 subspecies) Genus Micoureus Lesson 1842 (6 species with 10 subspecies) Genus Monodelphis Burnett 1829 (18 species) Genus Philander Brisson 1762 (4 species with 4 subspecies) Genus Thylamys Gray 1843 (10 species) Genus Tlacuatzin Voss and Jansa 2003 (1 species with 2 subspecies) Discussion: Hershkovitz (1992 a ) restricted the Didelphinae to the genera Chironectes , Didelphis , Philander , and Lutreolina . Hershkovitz (1997) further restricted the Didelphinae by establishing Chironectinae and Lutreolininae for Chironectes and Lutreolina , respectively.