242 Prof. M. Menzbier and Dr. P. Sushkin on the 



(Licht.)- (For other synonyms see Cat. B. Brit. Mus. 

 xiv. p. 137.) Thunberg's name for this bird has con- 

 sequently indisputable priority, so that it should be Elainea 

 flavogastra (Thunberg). The type-specimen is from Brazil. 



12. Pipra brunnea Thunberg, 1822,= Muscipeta hima- 

 culatus d'Orb. & Lafr. 1837 [fide Sclater). Its modern name 

 is Empidonax bimaculatus (d'Orb. & Lafr.), which, however, 

 should be changed to Empidonax brunneus (Thunberg) . (For 

 other synonyms see Cat. B. Brit. Mus. xiv. p. 224.) 



13. Pipra atra Thunberg, 1822, = Muscicapa colonus 

 Vieillot *. The modern name is Copurus colonus (Vieill.). 

 The type-specimen is a young bird-, and I am indebted to 

 Dr. Sharpe for its determination, as it would have been 

 impossible for me to come to any conclusive result about it 

 for want of material for comparison. Thunberg' s name is 

 in this case merely a synonym. 



XXII. — On the Adult Dress of the Labrador Falcon. 

 By Prof. M. Menzbier and Dr. P. Sushkin. 



i The Labrador Falcon (Hierqfalco labradorus) must 

 undoubtedly be considei*ed one of the most interesting 

 forms of the genus. It was first figured in 1831 by 

 Audubon, but in course of time was cither forgotten or 

 referred to other species, until it was re-established in 1875 

 by Mr. Dresser, who has had an opportunity of seeing and 

 examining many specimens of this Jerfalcon. Of these 

 some were stated by him to be adults and some young ; 

 while amongst the characters of this species he pointed out 

 the lead-blue legs (" pedes plumbei," Ornith. Misc. vol. i. 

 p. 185). Though, in comparison with other well-known 

 species of Jerfalcon, neither the character of the coloration of 

 the plumage nor the colour of the legs told much in favour 

 of Mr. Dresser's views, scarcely any objection has been 



* Diet. Nouv. d'Hist. Nat. 1816-19. 



