DIDELPHLS. MAMMALIA. 109 



** Females without a pouch. 



D. nudicaudata, Geoff. Desm. Fur gray, brown above, whitish un- 

 derneath ; a pale yellow spot over each eye ; tail longer than the 

 body, naked. Inhabits Cayenne. 



D. crassicaudata, Desm. Fur fawn or cinnamon-coloured, brighter 

 over the eyes ; tail thick at its origin, covered for a third of its 

 length. Paraguay. 



D. ccujopollin, Lin. Desm. Mexican Opossum. Fur yellowish gray 

 above, whitish underneath, round the eyes and upon the nose ; tail 

 brown, spotted with blackish, much longer than the body. Mexico. 

 Buff. x. pi. 55. 



D. lanigera, Desm. Fur woolly, almost the colour of tobacco above, 

 whitish below ; tail nearly triangular at its base, longer than the 

 body, partly naked on its upper side. Eight inches long. Paraguay. 



D. murina, Lin. Desm. Fur yellowish gray above, paler under- 

 neath ; eyes surrounded with brown ; tail naked, as long as the 

 body. Surinam Buff. x. pi. 52, 53. 



D. cincrea, Tern. Fur short, ash-gray in the males, yellowish gray 

 in the females, white beneath ; tail much longer than the body. 

 Brazils. Tern. Mon. 



D. dorsigera, Tern. Fur of a uniform brown colour ; head long ; 

 tail hairy at the base Tern. Mon. 



D. tricolor, Geoff. (D. brachyura, Pallas.) Fur of a blackish brown 

 on the back, reddish on the flanks, and white below ; tail very 

 short, all hairy. Pall. Ac. Petrop. ii. t. 5. 



D. brachyura, Geoff. Gmel. Fur deep red, brown above, and on the 

 flanks, whitish below ; tail half as long as the body. Seba, i. t. 31. 



D. pusilla, Desm. The Dwarf Opossum. Fur mouse-colour, whit- 

 ish below ; tail longer than the body, naked, and of a white co- 

 lour. Body three inches long. Paraguay. 



Gen. 82. CHIKONECTES, Illiger. Didelphis, Geoff. Cuv. 



Incisors \ 9 canines ^-, molars \-l, = ? probably 50, as in 

 the Didelphi. Anterior molars pointed and cutting ; muzzle 

 pointed ; ears naked ; feet pentadactyle, the posterior planti- 

 grade and palmated ; thumb without a nail ; nails of the 

 toes sharp and bent ; tail long, cylindrical, naked, scaly, and 

 prehensile ; abdominal pouch in the female. 



G.palmata, Geoff. The Yapock. Fur brown above, with three 



gray transverse patches or bands ; white beneath. Guiana. 



Griff An. King. iii. 35. 



Gen. 83. DASYUIIUS, Geoff. Cuv. Desm. Didelphis, Shaw. 

 Incisors f , canines -, molars J-g = 4. Two first molars 

 compressed and cutting, the others rough with points ; head 



