504 Zoological Society, 



line. lin. 



Longitude ab apice rostri ad caudse basin 47 



caud(£ 25 6 



tarsi digitorumque{%\j\Q\xTi^mb\x%). . 11 



ab apice rostri ad basin auris .... 8 



auris 3 7 



Foemina difFert vellere ex argenteo cinereo, corpore subttis fer^ 

 albo. Long, corporis cum capite, 33 unc. ; cauda, 26 ; tarsi digito- 

 rumque, 10 unc. 2 lin. 



The second species has a remarkably elegant appearance, being of 

 a slender delicate form, and adorned with two white stripes, which 

 commencing at the occiput, run down the back of the neck on to the 

 shoulders, where they are recui*ved. Mr. Gould proposed to desig- 

 nate this species 



Macroptjs fr^natus. Macr, elegans, et gracilis ; vellere molli 

 brevi, colore e Jusco cinereo ; corpore subtHs albo ; ab occipite 

 utrinque super humeros lined angustd alba currente ; interspatio 

 obscure, et apud occiput nigrescente : caudd tuberculo parvo cor- 

 neo ad apicem instructo, pilis nigrescentibus abscondito ; tar sis, 

 artubusque anticis fere albis, digiiis pilis obscuris paulo ad- 

 spersis. 



unc. lin. 

 Longitude ab apice rostri ad caudae basin. ... 23 



— — — Cauda 20 



tarsi digit orumque (sine uiiguihus). . 5 6 



— — ab apice rostri ad basin auris .... 42 



— — auris 2 3 



Hab. Interior of New South Wales. 



The third species is about the same size as the last. The most 

 remarkable character in this animal consists in its having a nail at 

 the tip of the tail : this nail is hidden by the tuft of hair with which 

 the end of the tail is furnished, and greatly resembles a finger-nail, 

 both in texture and form, but is of a black colour. The name pro- 

 posed for this species was 



Macropus unguifer. Macr, corpore gracili, caudd perlongd; 

 vellere perbrevi, et mediocriter molli : colore fulvo, parte corporis 

 anterior e, et collo albescentibus ; capite fere toto, nee non ar tubus 

 abdomineque albis : notd fused longitudinali, apud dorsum ; caudd 

 albidd, apicem versus, pilis longis et fuscis indutd, ad apicem 

 cum ungue nigrescente, fere magnitudinem et figuram unguis 

 exhibente, ut in digito hominis videtur, instructd, 



unc. lin. 

 Longitude ab apice rostri ad caudae basin. ... 25 



— Cauda 26 



— ; — tarsi digitorumque (sine unguihns). . 7 



ab apice rostri ad basin auris .... 4 



auris 2 6 



Hab. North-west coast of Australia. 



To the fourth species, having two crescent- shaped white marks 

 on the shoulders, Mr. Gould gave the name of 



