1. DIDElPHTa. 319 



a'. Anterior basal projection of 

 ear long, prominent, tri- 

 angular, 

 a'. Ear large, when laid for- 

 ward easily covering eye. 

 0°. Size larger : lower leg 

 about 40 millim. Colour 

 grey. Base of tail more 



or less furry 7. 2). cinerea, p. 342. 



6°. Size smaller : lower leg 

 82to38miUim. Colour 

 rufous. Base of tail 



not furry 8. 2). murina, p. 343. 



b'. Ear small, when laid for- 

 ward reaching at most to 

 centre of eye. 

 c". Size very small: lower 

 leg 24 miUim. Colour 



bright rufous 0. . D. lepida, p. 347. 



6^. Anterior basal projection of 



ear short, rounded, often 



obsolete. 



c'. General colour rufous. 



cP. Size very small : lower 



leg 20-25 millim. Tail 



very long 10. D. puailta, p. 348. 



rf'. General colour grey. 

 e". Size larger. Tail longer 

 than head and body. 



Belly pure white .... 11. 73. grkea, p. 349. 

 /", Size smaller. Tail shorter 

 than head and body. 



BeUy greyish white . . 12. B. velutina, p. 351. 

 ff^. Tail more or less incraseated in 

 basal half. Foot-pads high 

 and prominent, the sole be- 

 tween them markedly granu- 

 lated, 

 c*. Ears very long, their anterior 

 basal projection almost ob- 

 solete. Lower leg about 



27 millim 13. D. elegans, p. 351. 



B. Tail short, about half the length of the 

 head and body; not or scarcely pre- 

 hensile. Size small: lower leg less 

 than 35 mUUm. 

 e. Fur short, straight, and crisp. Ante- 

 rior basal projection of ear well de- 

 veloped V. Subgenus Peeamys, p. 363. 



d>. Back not lineated or spotted. 

 e'. Size large : lower leg exceeding 

 25 millim. 

 A'. Mammse not known. Ears very 



short. Sides orange 14. J), dimidiata, p. 355. 



i'. Mammse one in centre, four or 

 five lateral pairs. Ears large. 

 Sides red 15. i). brevioaudata, p. 356. 



