INTRODUCTION, xii 
146, Gerygone albogularis, Gould Vol. IL Pl. 97. 
Psilopus olivaceus, Gould in Proc, of Zool. Soc., Part V. p. 147, Young. 
147. Gerygone fusea, Gould. ; : g ; ; ; : ; Vol. IL. Pl. 98. 
148. Gerygone culicivorus, Gould . ; ; : ; , ; ; ; Vol. IL. PL. 99. 
149, Gerygone magnirostris, Gould ; : : , Vol. IL, Pl. 100. 
150. Gerygone levigaster, Gould ; ; : Vol. IL. Pl, 101. 
151. Gerygone chloronotus, Gould ‘ : ' Vol. IL. Pl. 102. 
Genus Smicrornts, Gould. 
Generic characters. 
Bill very small and short, swollen at the sides; wostri/s basal, oblong and protected by an operculum ; at the 
base of the bill a few fine hairs; wings moderately long, first quill very short ; the first, third, fourth and fifth equal 
and the longest ; fail short and square; tarsi moderate; oes rather short, adapted for clinging; the hinder and the 
middle toes equal in length. 
The members of this genus are the smallest birds of the Australian fauna. I have described two species, one 
inhabiting New South Wales and the other Port Essington ; and had I characterized the bird of this form inhabiting 
Western Australia as distinct, I should most likely not have been in error, as it is probable that when the subject 
has been more fully investigated it will prove to be so. 
152. Smicrornis brevirostris, Gou/d ; . : : , : ; ; ; Vol. II. PI. 103. 
153. Smicrornis flavescens, Gould . : . ; ; : ; ; Vol. IL. PL. 104. 
Family SYLVIADA, Je. 
Subfamily SAXICOLINE, Bonap. 
Genus Eryruropryas, Gould. 
Generic characters. 
As in Petroica, but with the bill shorter and more flattened at the base, where it is beset with a number of fine 
hairs which curve forward and overhang the nostrils ; wings shorter and more rounded ; first and second primaries 
much shorter than the rest ; the fifth the longest ; tarsi shorter; foes more lengthened ; lateral toes nearly even ; claws 
much sharper and more curved, 
The members of the genus Erythrodryas are much more delicate in structure than the Petrovca, have their feeble 
bill strongly beset with bristles, and are more arboreal in their habits; their usual places of resort being the 
innermost recesses of the forest, where, in a state of quiet seclusion, they flit about in search of insects; the true 
Petroice, on the other hand, frequent open plains, are more bold and yigorous, and possess a structure which adapts 
them for the ground over which they pass like the Sawicole. 
The two species of this genus, all that are at present known, are confined to the south-eastern portions of 
Australia and Van Diemen’s Land. 
154. Erythrodryas rhodinogaster . ; ‘ ' ; Vol. IL. PL. 1. 
155. Erythrodryas rosea, Gould . : ; > : , : : ; ; Vol. ILI. Pl. 2, 
Genus Prrroica, Swans. 
The birds I have retained in this genus might with propriety be divided by separating the pied Robins from 
the red-breasted species. The dusky Robin of Van Diemen’s Land and the white eye-browed Robin of the 
north-east coast of Australia would also constitute another group of equal value with Hrythrodryas, Drymodes and 
Eopsaltria, 
The red-breasted Petroice are confined to the south-eastern portions of Australia, Van Diemen’s Land and 
Norfolk Island : but I believe that the range of the pied birds extends to New Guinea. 
