Gracilinanus Gardner and Creighton 1989
Gracilinanus Gardner and Creighton 1989, Proc. Biol. Soc. Wash., 102: 4.
Type Species: Didelphys microtarsus Wagner 1842
Synonyms: Grymaeomys Burmeister 1854 .
Species and subspecies: 9 species with 2 subspecies:
Species Gracilinanus aceramarcae (Tate 1931)
Species Gracilinanus agilis (Burmeister 1854)
Species Gracilinanus agricolai (Moojen 1943)
Species Gracilinanus dryas (Thomas 1898)
Species Gracilinanus emiliae (Thomas 1909)
Species Gracilinanus formosus (Shamel 1930)
Species Gracilinanus ignitus Díaz, Flores, and Barquez 2002
Species Gracilinanus marica (Thomas 1898)
Species Gracilinanus microtarsus (Wagner 1842)
Subspecies Gracilinanus microtarsus subsp. microtarsus Wagner 1842
Subspecies Gracilinanus microtarsus subsp. guahybae Tate 1931
Discussion: Previously in Marmosa (sensu lato; see Gardner and Creighton, 1989).