^°'i^f' ] CAMPBELL, Xczc Suh-sf^ecies of Tit-Warblrrs. 65 



seen another skin (6961) in the private collection of the late A. W. 

 Milligan, taken at Ebano, West Australia, which answers to the 

 above description. Winj?, 2.0 inches. 



Geobasileus uropygialis moora. Sub. sp. nov. 



Upper surface olive brown tinged with sepia on the back; fore- 

 head feathers blackish tipped with crescents of white; crown tinged 

 russet; upper tail coverts and base of tail tawny; broad black band 

 on tail; tips white; under-surface white crossed by band of grey on 

 breast; flanks tinged light buff; faintest dusky fringe on some 

 feathers of throat; under tail coverts and axillaries white; bill and 

 legs black; eyes white. Length, 3.8 in.; bill, .35 in.; wing, 2.1 in.; 

 tail, 1.5 in.; tarsus, .8 in. 



Type male (62) in collection of Edwin Ashby, Esq., Adelaide, 

 taken at Watheroo, near Moora, West Australia, 6/11/1920. 



This bird comes from inside the coastal belt of good rainfall, and 

 has the upper surface and breast as dark as G. u. uropygialis but upper 

 tail coverts and base of tail lighter (tawny), as well as under tail 

 coverts and axillaries white like those of G. u. condora, the bill being 

 larger than either. It represents the extreme western race sepa- 

 rated from the type in the extreme east by the vast eremian region 

 with its pallid form. 



Geobasileus uropygialis erema. Sub. sp. nov. 



Upper surface pallid drab; wings drab; forehead crescents very 

 few; upper tail coverts and base of tail lightest cinnamon (some of 

 the coverts tipped light buff); broad dark band on tail, tips white; 

 under-surface white; flanks tinged light buff; bill and legs black; 

 eyes white. Length, 3.3 in.; bill, .3 in.; wing, 1.9 in.; tail, 1.4 in.; 

 tarsus, .7 in. 



Type male (312) in the National Museum Collection, Melbourne, 

 taken at Kychering Soak, East-West Railway, S. Aust., 17/12/1908. 

 Co-type female (304) in the same collection from the same locality 

 is similar, while still another specimen has a pervading cinnamon 

 tinge especially on edges of secondaries and tail tips. 



This is the extreme eremian or true desert foi'm of the species, 

 which I cannot find recorded as such. It has decreased in size from 

 the pallid form, G. u. condora, become still lighter, and taken on 

 the prevailing tone of the red ironstone desert. 



Geobasileus chrysorrhous pallescens. Sub. sp. nov. 



Upper surface buffy olive; forehead feathers fuscous black, each 

 being tipped with white; frontal spot (confined to lores) and over 

 eyes white; crown plain fuscous; wings and tail drab, tail having a 

 broad bar of black and faint white base, upper tail coverts wax yellow, 

 darker than in G. c. c/?n'sorr/iOM5; the colour running on to the outer webs 

 of the tail; tips buffy white; throat buffy white, with slight dusky 

 fringe to some feathers; breast pinkish buff; flanks and under tail 

 coverts and axillaries with distinct wash of yellow; bill and legs 

 black; eyes white. Length, 3.7 in.; bill, 0.48 in.; v^ang, 2.3 in.; tail, 

 1.5 in.; tarsus, 0.75 in. 



Type male No. 36 (303) in National Museum Collection, Mel- 

 bourne, was obtained by the Horn Expedition, Levi Ranges, Central 

 Australia, in 1895. 



This represents the far interior pallid race. 

 Geobasileus chrysorrhous westernensis. Sub. sp. nov. 



Upper surface olive tinged with citrine like G. c. chrysorrhous; 

 crown fuscous black; forehead feathers sparsely tipped white; fron- 



