2 MARMOSA. 



Thylamys (sic) Gray, List. Mamm. Brit. Mus., 1843, P- loi- 

 GrymcBomys Burm., Syst. Uebers. Thiere Bras., i, 1854, p. 135. 

 Cuica Liais, Climats, Geol., Faun., Geog., et Botan. Bresil, 1872, 

 p. 427- 



2. Marmosa murina (Linnaeus). 



Didelphis! murina Linn., Syst. Nat., i, 1758, p. 55. 



Didelphis! dorsigera Linn., Syst. Nat., i, 1758, p. 55. 



Didelphys cayopollin Schreb., Saugth., iii, 1778, p. 544, pi. cxlviii.- 



Didelphys macrotarsus Wagn., Archiv f. Naturg., viii, 1842, p. 359. 



(nee Schreber.) 

 Didelphys microiarsiis Wagn., Archiv f. Naturg., viii, 1842, p. 359. 



(nee Schreber.) 

 Didelphys impavida Tsehudi, Faun. Peruana, 1844, p. 149, pi. ix. 

 Didelphys muscuhis Cab., Schomb. Brit. Guiana, iii, 1848, p. 778. 

 Grymceomys murinus Burm., Erlaut. Faun. Bras., 1856, pp. 80-81. 

 Grymceomys dorsiger Burm., Erlaut. Faun. Bras., 1856, pp. 80-81. 

 GrymcBomys impavida Burm., Erlaut. Faun. Bras., 1856, pp. 80-81. 

 Didelphys murinus True, Proc. U. S. Nat. Mus., vii, 1885, p. 587. 

 Marmosa murina Thomas, Ann. Mag. Nat. Hist., 6th Ser., 1895, 



p. 58. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 



Pub., IV, Pt. I, 1904, p. 5. Zool. Ser. 

 Murine Opossum. Tlacuazin Raton in Guatemala. 

 Type locality. Unknown. 

 Geogr. Distr. Central America to Brazil. 



a. Maj'mosa nniTina niexicana Merriam. 



Marmosa murina mexicana Merr., Proc. Biol. Soc. Wash., xi, 

 1897, p. 44. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 6. Zool. Ser. 

 Mexican Murine Opossum. 



Type locality. Juquila, State of Oaxaca, Mexico. 

 Geogr. Distr. States of Oaxaca and Chiapas, Mexico. 



3. Marmosa canescens (Allen). 



Didelphis! (Micoureus) canescens Allen, Bull. Am. Mus. Nat. Hist. 



N. Y., 1893, p. 235. 

 Marmosa canescens Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1897, 

 p. 58. Elliot, Mamm. Middle Amer. & W. Indies, F. C. M. 

 Pub., IV, Pt. I, 1904, p. 6. Zool. Ser. 

 Ashy Opossum. 



Type locality. Santo Domingo de Guzman, Isthmus of Tehuan- 

 tepec, Mexico. 



