364 BIRDS OF AUSTRALIA. 



olive-brown, the forehead and tail becoming rufous brown ; 

 throat and chest brownish white; abdomen greyish white, 

 passing into bright olive-green on the lower part of the flanks ; 

 bill black ; feet light brown ; irides brown. 



Total length 4f inches ; bill f ; wing 3J ; tail 1| ; tarsi f . 



Genus ACANTHIZA, Vigors and Horsfield. 



With the exception of the north coast, the AcantJdzcd are 

 dispersed over all the wooded districts of the continent of 

 Australia and Tasmania : some species frequent the brushes, 

 while others tenant the shrubs and belts of trees on the plains ; 

 others again are only found in such districts as the belts of 

 the Murray. 



Like some other groups, the Acanthizce admit of division 

 into two or more sections, some being feeble in structure, and 

 strictly arboreal in their habits, while others resort to the 

 ground ; for two of the latter, A. chri/sorrhcea and A. reguloides, 

 M. Cabanis has proposed the generic appellation of Geoba- 

 sileus, which I shall accordingly adopt. The nests of all the 

 species that I have seen are of a domed form. 



The members of this genus are frequently the foster- 

 parents of the Shining Cuckoo {Chrysococcyx lucidm). 



Sp. 220. ACANTHIZA PUSILLA. 



Little Brown Acanthiza. 



Sylvia pusilla, Lath. Ind. Orn., Supp. p. Ivi. 



Motacilla pusilla, White's Journ., pi. in p. 257. 



Dwarf Warbler, Lath. Gen. Syn., Supp. vol. ii. p. 251. 



Acanthiza pusilla, Vig. and Horsf. in Linn. Trans., vol. xv. p. 227, note. 



Acanthiza pusilla, Gould, Birds of Australia, foL, vol. iii. pi. 53. 



The present bird is very generally dispersed over New 

 South Wales, where it inhabits the brushes, thickets, and 

 gardens. It is most nearly allied to the A. diemcnensis, but 



