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Online Supplement: Table S1: List of evolution of Micoureus demerarae and M. paraguayanus

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Online Supplement:

Table S1: List of evolution of Micoureus demerarae and M. paraguayanus species epithets and localities (distribution) extracted from the primary literature.

Genus subgenus


Locality (distribution)






Lesson 1842


Didelphis micoureus


Neotropical region (Costa Rica to Brazil), apparently not found in Northeastern of South America.

Thomas 1888

Color grey with yellowish on the sides; size larger in this group: head and body 175mm, tail 248mm, lower leg 40mm, hind foot 24-25mm, ear 21mm. Adult male.

Marmosa (micoureus)


Bogotá, Colombia.

Thomas 1898

The largest species of the group (head and body 229mm; tail 226mm; hind foot 29mm; ear 23mm), distinguish from M. cinerea by its dark yellowish belly, narrowest of its nasals and interorbital region and uniformly brown tail. Adult male.

Marmosa (micoureus)


Chapada - MT, Brazil.

Thomas 1903

Larger size, paler and shorter tail then M. cinerea and wider skull, more expanded nasals and multicolor tail than M. regina; dimensions of the type: head and body 180mm; tail 195mm; hind foot 27mm; ear 31mm. Adult male.

Marmosa (micoureus)

cinerea demerarae


Thomas 1905

A little smaller than the other members of cinerea group (dimensions of the type: head and body 166mm; tail 250mm; hind foot 24mm). It differs from M. cinerea by the greater extent of the brown part of its tail. Adult female.

Marmosa (micoureus)

cinerea paraguayanus

Villa Rica, Paraguay; Lagoa Santa/MG, Brazil; Sta. Catarina, Brazil (range from Southern part of Brazil to Eastern Paraguay).

Tate 1931

Mouse gray, length of head and body 160 mm, length of tail 220mm, length of hind foot 27mm.

Marmosa (micoureus)

cinerea travassosi

Angra dos Reis - RJ, Brazil

Miranda-Ribeiro 1936

Smaller tail, intense abdominal color, and longer hairs.



Neotropical region (Costa Rica to Brazil).

Reig et al. 1985

Separated genus Marmosa (head body lenght 120-160mm) from Micoureus (head body size 130-215mm, long tail).




Central America, from Belize to Panama and Caribbean Islands.

East Bolivia, adjacent South Brazil into North Argentina.

Colombia, Venezuela, French Guiana, Guyana, Surinam, Brazil, and East Paraguay.
Colombia, Ecuador, Peru, and Bolivia.

Gardner 1993

(in Wilson and Reeder, 1993)

Type locality: Costa Rica, Cartago, "Tres Rios".
Type locality: Brazil, Mato Grosso, Chapada.
Type locality: Guyana, E. Demerara-West Coast Berbice, "Comaccka, 80 miles up Demerara river". Synonyms: cinerea, limae, paraguayana, travassosi, and others.

Type locality: Colombia, West Cundinamarca, Bogotá Region.



Northwestern lowlands of Colombia, and from Panama north into Belize.

Eastern Bolivia, adjacent Brazil southward into northern Argentina.

Colombia, Venezuela, the Guyanas, Surinam, North Brazil, East Peru and East Bolivia.

in Atlantic Forest – from South Bahia, Brazil to East Paraguay and North Argentina.

West slope of the Andes – from SW Colombia to SW Equador.

Colombia, Equador, Peru, Brazil and Bolivia.

Wilson and Reeder 2005; and, Gardner 2007

The largest mouse opossum in Central America.
Differs from others Micoureus in having creamy-white to yellow, self-colored ventral pelage (not gray-based).

Ventral pelage color and the extent of white on the tip of the tail show significant geographic variation.

Is smaller and have shorter fur.
Longer extent of the long-furred portion of the tail.
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