6 METACHIRUS. DIDELPHYS. 



a. Metacliirus fusco^riHejis pallid iifi Allen. 



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. Id. Check-L. 

 Mamm. N. Amer. Cont. & W. Indies, F. C. M. Pub., vi, 1905, 

 p. 5. Zool. Ser. 

 Orizaba Opossum. 



1-6. Adult c? Coll. Achotal, State of Vera Cruz, Mexico. Heller 



& Barber, 

 7-8. Adult 9 Coll. Achotal, State of Vera Cruz, Mexico. Heller 

 & Barber. 



8. Metachirus opossum (Linnaeus). 



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



Didelphis! quica Temm., Mon. Mamm., i, 1827, p. 36. 

 QuiCA Opossum. 



I. Adult — P. Brazil. Ward's Nat. Scien. Establ., Rochester, 

 N. Y. ■ 



Genus 6. Didelphys. 



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

 marsupialis Linnaeus. 

 Philander Brisson, Regn. Anim., 1762, pp. 13, 207. 



Subgenus A. Philander. 



9. Didelphys trinitatis Thomas, 



Didelphys trinitatis Thos., Ann. Mag. Nat. Hist., 6th Ser., xiii, 

 1894, p. 438. 

 Philander Opossum. 



1-2. Adult 6" Exch. Caura, Trinidad. Am. Mus. Nat. Hist. 

 N. Y. F. M. Chapman. 



Subgenus B. Didelphys. 



10. Didelphys marsupialis Linnaeus. 



Didelphis! marsupialis Linn., Syst. Nat., i, 1758, p. 54. Thos., 



Am. Nat., xxxv, 1901, p. 144. 

 Didelphis! karkinophaga! Zimm., Geogr. Gesch., 11, 1780, p. 226. 

 Didelphis! carcinophaga Bodd., Elench. Anim., i, 1785, p. 77. 

 Didelphis! cancrivora Gmel., Syst. Nat., i, 1788, p. 108. 



