2. PEEAMELBS. 



229 



Synopsis of the Species. 



I, EXTEENAL ChAEACTEES. 



A. Centre of sole, in adults, naked nearly or 



quite to the heel. Ear short, when laid 



forwards not, or barely, reaching to 



the eye ; its tip rounded, not pointed. 



a. Sole wrinMed, with distinct pads at 



the bases of the digits. Metatragus 



oblong, longer than broad, its end 



twisted. Fur spiny, but the spines 



not exceeding about \ mUlim. in 



breadth. Mammge 8. 



a^. Rump grizzled yellow, uniform with 



anterior back. 



a^. South and West Australian .... 



b^. North Australian 



b^. Rump grizzled orange, darker than 

 the yellow-grizzled anterior back. 



Papuan 



6. Sole finely granulated, without or with 

 very indistinct and rudimentary pads. 

 Metatragus small, triangular, or rudi- 

 mentary. Papuan only, 

 c^. Tail short, not, or scarcely, longer 

 than the head. Fur excessively 

 spiny, the spines from | to |^ mil- 

 lim. in breadth. 

 c'. Size large. Muzzle long, the 

 distance from nose to eye more 

 than 45 millim. Mammje 8 . . 

 <P. Size smaller. Muzzle short, the 

 distance from nose to eye less 

 than 45 millim. Mammse 6 . . 

 d^. Tail long, twice the length of the 

 head. Fur scarcely spiny at all. 

 e^. Size large. Distance from nose 

 to eye more than 45 millim. ; 

 hind foot more than 65 miUim. 

 long. Mammae 8. 

 o'. Hind foot less than 85 miUim. 



long. Tail simple 



6'. Hind foot more than 85 millim. 

 long. Tail transversely ribbed 



below ; prehensile 



f^. Size small. Distance from nose 

 to eye less than 45 millim. Hind 

 foot less than 65 millim. long. 



Mammse 6 



B. Posterior half of sole hairy *. Ear long, 



when laid forward reaching beyond 



eye ; its tip pointed. Mammae 8. 



c. Rump unstriped. ^ Tail dark above for 



its whole length. Hind foot more 



than 65 millim. long 



1. P. obemla, p. 231. 



2. P. macrura, p. 234. 



3. P. moresbyenm, p. 235. 



4. P. doreyana, p. 236. 



5. P. cockerelli, p. 238. 



6. P. raffrayana, p. 239. 



7. P. broadbenti, p. 240. 



8. P. longicaudata, p. 241. 



9. P. nasuia, p. 242. 



* The heel is occasionally worn bare in old specimens. 



