MARSUPIALIA: DIDELPHIIDAE 7 



Type Locality. — Navarro, near Orosi, Caribbean slope, Cartago, Costa Rica. 

 Altitude, between 2,500 and 3,000 feet. Range. — Parts of Costa Rica (Navarro, 

 Boruco, Jimenez, Rio Pacuare) and Nicaragua (Bluefields, Escondido River, 

 Rio Tuma, east of Matagalpa). 

 Marmosa canescens canescens (J. A. Allen) * 



1893. Didelphis {Micoureus) canescens J. A. Allen, Bull. Amer. Mus. Nat. 



Hist., vol. 5, p. 235, Sept. 22, 1893. 

 1897. Marmosa canescens J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 9, p. 

 58, Mar. 15, 1897. 



1897. M[armosa] canescens Merriam, Proc. Biol. Soc. Washington, vol. 11, 

 p. 43, Mar. 16, 1897. 



1913. Marmosa gaumeri Osgood, Proc. Biol. Soc. Washington, vol. 26, p. 175, 



Aug. 8, 1913. (Yaxcaba, southwest of Chichen-Itza, Yucatan, Mexico). 



1933. Marmosa canescens canescens Tate, Bull. Amer. Mus. Nat. Hist., vol. 66, 



p. 140, Aug. 10, 1933. 

 Type Locality. — Santo Domingo de Guzman, Isthmus of Tehuantepec, Oaxaca, 

 Mexico. Range. — Yucatan, Oaxaca (and probably parts of Chiapas), Guer- 

 rero, parts of Puebla, Michoacan. A specimen from Colima and another from 

 Nayarit appear intermediate between canescens and sinaloae. 

 Marmosa canescens sinaloae J. A. Allen* 



1898. Marmosa sinaloae J. A. Allen, Bull. Amer. Mus. Nat. Hist., vol. 10, 

 p. 143, Apr. 12, 1898. 



1933. Marmosa canescens sinaloae Tate, Bull. Amer. Mus. Nat. Hist., vol. 66, 

 p. 142, Aug. 10, 1933. 



Type Locality. — Tatemeles, Sinaloa, Mexico. Range. — Provinces of Sinaloa, 

 Durango and Nayarit, Mexico. 

 Marmosa canescens oaxacae Merriamf * 



1897. Marmosa oaxacae Merriam, Proc. Biol. Soc. Washington, vol. 11, p. 43, 

 Mar. 16, 1897. 



1933. Marmosa canescens oaxacae Tate, Bull. Amer. Mus. Nat. Hist., vol. 66, 

 p. 143, Aug. 10, 1933. 



Type Locality. — City of Oaxaca, Oaxaca, Mexico. Range. — Known from city 

 of Oaxaca, only. 

 Marmosa canescens insularis Merriamf* 



1898. Marmosa insularis Merriam, Proc. Biol. Soc. Washington, vol. 12, p. 

 14, Jan. 27, 1898. 



1933. Marmosa canescens insularis Tate, Bull. Amer. Mus. Nat. Hist., vol. 66, 



p. 144, Aug. 10, 1933. 

 Type Locality. — Maria Madre Island, Tres Marias Islands, Nayarit, Mexico. 

 Range. — Known from Maria Madre Island only. 



noctivagans — group 



Marmosa invicta Goldmanf* 



1912. Marmosa invicta Goldman, Smithsonian Misc. Coll., vol. 60, No. 2, 

 p. 3, Sept. 20, 1912. 



Type Locality. — Cana (Santa Cruz de Cana), upper Rio Tuyra, Darien, east- 

 ern Panama. Altitude, 2,000 feet. Range. — Known from type locality only. 



