Marmosops Matschie 1916
Marmosops Matschie 1916, Sitzb. Ges. Naturf. Fr. Berlin, 1916 (1): 267.
Type Species: Didelphis incana Lund 1840
Synonyms: Grymaeomys Burmeister 1854 .
Species and subspecies: 14 species with 3 subspecies:
Species Marmosops bishopi (Pine 1981)
Species Marmosops cracens (Handley and Gordon 1979)
Species Marmosops dorothea (Thomas 1911)
Species Marmosops fuscatus (Thomas 1896)
Subspecies Marmosops fuscatus subsp. fuscatus Thomas 1896
Subspecies Marmosops fuscatus subsp. carri J. A. Allen and Chapman 1897
Subspecies Marmosops fuscatus subsp. perfuscus Thomas 1924
Species Marmosops handleyi Pine 1981
Species Marmosops impavidus (Tschudi 1845)
Species Marmosops incanus (Lund 1840)
Species Marmosops invictus (Goldman 1912)
Species Marmosops juninensis Tate 1931
Species Marmosops neblina Gardner 1990
Species Marmosops noctivagus (Tschudi 1844)
Species Marmosops parvidens Tate 1931
Species Marmosops paulensis Tate 1931
Species Marmosops pinheiroi Pine 1981
Discussion: Previously in Marmosa (sensu lato; see Gardner and Creighton, 1989).