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Mouse opossums
Marmosa robinsoni.jpg
Robinson's mouse opossum (Marmosa robinsoni).
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Infraclass: Marsupialia
Order: Didelphimorphia
Family: Didelphidae
Subfamily: Didelphinae
Genus: Marmosa
Gray, 1821
Type species
Didelphis marina
Gray, 1821
  • Marmosa
  • Micoureus

The nineteen species in the genus Marmosa are relatively small Neotropic members of the family Didelphidae.[1] This genus is one of three that are known as mouse opossums. The others are Thylamys (the "fat-tailed mouse opossums") and Tlacuatzin, the grayish mouse opossum. Members of the genus Marmosops used to be called "slender mouse opossums", but are now just called "slender opossums". The six members of the Marmosa subgenus Micoureus, known as "woolly mouse opossums", were formerly considered to be a separate genus,[2] but were moved into Marmosa in 2009.[3] [4]

The species in subgenus Marmosa (Gray, 1821) are:

The species in subgenus Micoureus (Lesson, 1842) are:


  1. ^ Gutiérrez, EE; Jansa, SA; Voss, RS (2010). "Molecular systematics of mouse opossums (Didelphidae: Marmosa): assessing species limits using mitochondrial DNA sequences, with comments on phylogenetic relationships and biogeography". American Museum Novitates 3692: 1–22. 
  2. ^ Gardner, A.L. (2005). "Order Didelphimorphia". In Wilson, D.E.; Reeder, D.M. Mammal Species of the World: A Taxonomic and Geographic Reference (3rd ed.). Johns Hopkins University Press. pp. 3–18. ISBN 978-0-8018-8221-0. OCLC 62265494. 
  3. ^ Voss, R. S.; Jansa, S. A. (2009). "Phylogenetic relationships and classification of didelphid marsupials, an extant radiation of New World metatherian mammals". Bulletin of the American Museum of Natural History 322: 1–177. doi:10.1206/322.1. Retrieved 2012-01-18. 
  4. ^ Voss, Robert S; Gutiérrez, Eliécer E; Solari, Sergio; Rossi, Rogerio V; Jansa, Sharon A (2014). "Phylogenetic relationships of mouse opossums (Didelphidae, Marmosa) with a revised subgeneric classification and notes on sympatric diversity". American Museum Novitates 3817: 1–27.