374 BIRDS OF AUSTRALIA. 



on the external webs ; coverts, particularly the greater ones, 

 tipped with white ; primaries narrowly edged with grey, 

 innermost secondaries margined all round the tip with white ; 

 tail olive, crossed near the tip by a broad band of dusky 

 brown, beyond which the external feathers are marghied on 

 both webs with greyish white ; lores black ; ear-coverts slaty 

 brown ; throat and under surface straw-yellow ; bill blackish 

 brown ; feet fleshy brown. 



Total length 4f inches ; bill f ; wing 2f ; tail 2 ; tarsi i. 



Genus GEOBASILEUS, Cahanis 



In my remarks on the members of the genus Acanthiza, I 

 stated that those birds might be divided into two or three 

 sections, and this view has been taken by M. Cabanis, who 

 has proposed the above generic title for the birds figured in 

 the folio edition as Acanthiza chrT/sorrhoea and A. reguloides. 



Sp. 229. GEOBASILEUS CHRYSORRHOUS. 



Yellow-rumped Gesobasileus. 



Saxicola chrysorrhcea, Quoy and Gaim. Voy. de 1' Astrolabe, p. 198, 



pi. 10. fig. 2. 

 Geobasileus ckrysorrhous, Cab, Mus. Hein., Theil i. p. 32. 

 Jee-da, Aborigines of the lowland districts of Western Australia. 



Acanthiza chrysorrhcea, Gould, Birds of Australia, fol., vol. iii. 

 pi. 63. 



This w^ll-known species inhabits Tasmania, Western and 

 Southern Australia, and New South Wales, in all of which 

 countries it is a permanent resident. It is generally met with 

 in small companies of from six to ten in number, and is so 

 tame that it may be very closely approached before it will rise, 

 and then it merely flits off to a short distance and alights 

 again ; during these short flights the yellow of the rump 

 shows very conspicuously. 



