SPECIES OF MAMMALIA. 



fur short, cottony above, ash-gray in the males, yellowish- 

 gray in the female ; beneath white. 



Didelphis Cinerea, Temminckt Monog. 



Icon. 



. Inhab. Brazils. Prince Maximilian de Neuwied. 



484. 10. D. Dorsigera (Back-bearing Opossum.) Head 

 long ; tail hairy at the base, of a uniform brown colour. 



Didelphis Dorsigera, Temminckt Monog. 1 . Gmelin, Sys. 

 Nat. i. 107. 



Icon. 



Inhabits. 



485. 11. Z). Nudicaudata (Naked-Tailed Opossum.) Gray 

 brown above, whitish underneath ; a pale yellow spot over 

 each eye ; tail longer than the body, and entirely naked ; 

 no marsupial pouch, but a longitudinal fold of the skin 

 along each side of the belly. 



D. Nudicaudata, Geoff. Collect, du Mus. d'Hist. Nat. 

 Didelphis Myosuros, Temminck, Monog. 38 ? 



Inhabits Cayenne. 



Obs. This species appears to differ from D. Opossum, 

 principally in the fold of skin, instead of the marsupial 

 pouch, and the total nudity of the tail. 



M. Temminck {Monog.) describes his D. Myosuros as 

 having a pouch in the female. He doubts the accuracy of 

 M. Geoffroy's M. Nudicaudata being destitute of yie pouch, 

 and refers both conditionally to one species. 



486. 12. D. Crassicaudata (Thick-Tailed Opossum.) 

 Deeper yellow above, brighter over the eyes ; tail nearly 

 the length of the body, very thick at its insertion, and co- 

 vered with a fold of skin, instead of a marsupial pouch, for 

 about a third of its length. 



Didelphis Crassicaudata, Desm. Nat. Diet. d'Hist. Nat. 



