'504 Zoological Society. 



unc, lin. 

 Longitude ab apice rostri ad caudse basin. ... 47 



■ caudce 25 6 



tarsi digitorumque{^\xie.\xa^\hViS). . 11 



ab apice rostri ad basin auris .... 8 



auris 3 7 



Fcemina difFert vellere ex argenteo cinereo, corpora subti^is fere 

 albo. Long. coriDoris cum capite, 33 unc. ; caudce, 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 recurved. Mr. Gould proposed to desig- 

 nate this sjjecies 



Macropus fr^natus. Macr. elegans, ct gracilis; vellere molli 

 brevi, colore e fusco cinereo ; corpore subtiis albo ; ab occipite 

 utrinque sitper humeros lined angustd alba currente ; interspatio 

 obscuro, et apud occiput nigrescenie : caudd tuberculo j)arvo cor- 

 neo ad apicem instructo, pilis nigrescentibus abscondito ; tarsis, 

 artubusque anticis fere albis, digitis pilis obscuris pauld ad~ 

 spersis. 



unc. lin. 

 Longitudo ab apice rostri ad caudse basin. ... 23 



• caudce 20 



tarsi digitorumque (sine uuguihus). . 5 6 



ab apice rostri ad basin auris .... 4 2 



— auris 2 3 



Hah. 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 tiji 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 

 anteriore, et collo albescentibus ; capite fere toto, nee non ariubus 

 abdomineque albis : notd fused longitudinali, apud dorsum ; caudd 

 albidd, apicetn 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. 

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



: caudce 26 



tarsi digitorumque (sine unguihus). , 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 



