ATRICniID.13. 659 



Subdivision II. PASSERES ABNORMALES * 



Cf. Garrod, P. Z. S. 1876, p. 518. 



Synopsis of Families. 



A. Furcula rudimentaiy : steruum with a single 



deep lateral indentation on its hinder 

 margin t; tail-feathers broad and of ordi- 

 nary textnre Atrichiidae, p. 659. 



B. Furcula complete : sternum with rounded 



posterior margin, with a slight indentation 

 near the outer edge of the latter ; tail- 

 feathers produced to an extraordinary 

 length, and many of them devoid of hook- 

 lets (radioli) Menuridae, p. 661. 



Family I. ATRICHIID^. 



1. ATRICHIA. 



Type. 

 Atrichia, Gotdd, P. Z. S. 1844, p. 1 , A. clamosa. 



Range. Confined to Australia. 



In addition to the characters given for the family it should be 

 noticed that AtricJiia has such a tiny wing that its powers of flight 

 must be rudimentary, and it has the planta tarsi more closely 

 scutellated than in any Lark. 



Key to the Species. 



a. Larger : throat and breast white, with a blackish 



patch on the lower throat and fore neck clamosa, p. 659. 



b. Smaller : under surface orange-rufous, whiter on the 



throat, the centre of the chest and breast blackish ricfescens, p. 660. 



1. Atrichia clamosa. 



Atrichia clamosa, Gould, P. Z. S. 1844, p. 2 ; id. B. Austr. pi. 34 

 (1844) ; Gray, Gen. B. i. p. 166 (1848) ; ' Bp. Consp. i. p. 219 

 (1850) ; Goidd, Handb. B. Austr. i. p. 344 (1865) ; Gray, 

 Hand-l. B. i. p. 205, no. 2897 (1869) ; Ramsay, Tab. List Austr. 

 B. p. 8 (1888). 



Adult. General colour above dark chocolate-brown, waved with 



* Cf. Cat. B. vol. iii. p. 3. 



t Di-. Sclater (Ibis, 1874, p. 191, uote) refers to the double-notchecl sternum 

 o( Atrichia rufescens, but Garrod figures the sternum of A. riifesccns with only 

 a single indentation (cf. P. Z. S. 1876, pi. Iii. fig. 7), and only one notch exists in 

 the sternum of A. clamosain the Museiuu of the Eoyal College of Surgeons. 



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