METACHIRUS. DIDELPHYS. 5 



Metachirus nudicaudatus 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 OPOSSUM. 



Type locality. Cayenne, French Guiana. 

 Geogr. Distr. Costa Rica to Brazil. 



12. Metachirus fuscogriseus Allen. 



Metachirus fuscogriseus 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., vu, 1885, p. 587. 



(nee Temm.) 



ALLEN'S OPOSSUM. Tlacuazin in Guatemala. 

 Type locality. Unknown. 

 Geogr. Distr. Southern Mexico to Costa Rica. 



a. ,Metacliii'iis fnseotfTiseus palUdns Alien. 



Metachirus fuscogriseus 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 cozinnelce Merriam. 



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



1901, p. 101. 



Didelphys yucatanensis cozumeloe Elliot, Mamm. Middle Amer. & 

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



