METACHIRUS. DIDELPHYS. 5 



Metachirus nudicaudahts Allen, Bull. Am. Mus. Nat. Hist. N. Y., 

 1900, p. 197. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 12. Zool. Ser. 

 Rat-tailed Opossu.m, 



Type locality. Cayenne, French Guiana. 



Geogr. Distr. Costa Rica to Brazil. 



12. Metachirus fuscogriseus Allen. 



Metachirus juscogriseus Allen, Bull. Am. Mus. Nat. Hist. N. Y., 



1900, p. 194. Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 12, figs. 3, IV. Zool. Ser. 



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

 (nee Temm.) 

 Allen's Opossum. Tlacuazin in Guatemala. 

 Type locality. Unknown. 

 Geogr. Distr. Southern Mexico to Costa Rica. 



a. Metachirus fuscogriseus pallidus Allen. 



Metachirus juscogriseus pallidus Allen, Bull. Am. Mus. Nat. Hist. 

 N. Y., 1901, p. 215. Elliot, Mamm. Middle Amer. & W. 

 Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 13. Zool. Ser. 

 Orizaba Opossum. 



Type locality. Orizaba, State of Vera Cruz, Mexico. 

 Geogr. Distr. States of Vera Cruz, Puebla, and Tabasco, south- 

 eastern Mexico. 



Genus 5. Didelphys. 



Didelphis (sic) Linnaeus, Syst. Nat., 1758, p. 54. Type Didelphis! 

 marsupialis Linnaeus, 



13. Didelphys yucatanensis Allen. 



Didelphis! yucatanensis Allen, Bull. Am. Mus. Nat. Hist. N. Y., 



1901, p. 178. 



Didelphys yucatanensis Elliot, Mamm. Middle Amer. & W. Indies, 

 F. C. M. Pub., IV, Pt. I, 1904, p. 14. Zool. Ser. 

 Yucatan Opossum. 



Type locality. Chichen Itza, Yucatan, Mexico. 



Geogr. Distr. States of Campeche and Yucatan, Mexico. 



a. Didelphys yucatanensis cozumelcp Merriam. 



Didelphis! yucatanensis cozumeloe Merr., Proc. Biol, Soc. Wash., xiv, 



1901, p. lOI. 

 Didelphys yucatanensis cozumelce Elliot, Mamm. Middle Amer. & 

 W. Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 15. Zool. Ser. 



