172 Mr. Swainson on several new groups in Ornithology, 



I believe this form is peculiar to Africa : several new species 

 have been discovered in that country by my valued friend Mr. 

 Burchell, now engaged in exploring the Forests of Matto Grosso, 

 and the Gordelleras of Peru. 



** Rostrum breve, rectum, depressum, culmine subrecto, rictu 



barbato, 



FLUVICOLA. 



Aloe elongatce, remigibus ^da et Z*i^ cequalibus, longissimis, 

 Cauda mediocris, subrofundata. 



Pedes graciles, tarsorum squamis anterioribus divisis, lateralibus 

 obsoletis. 



Wings elongated ; the second and third quill equal and longest. 

 Tail moderate, slightly rounded. Legs slender; anterior 

 scales of the tarsi divided, lateral scales obsolete. 



I cannot with any certainty, quote a typical example of this 

 new form, of which I possess two distinct species from Brazil. 



SAXICOLA. Bechst, 



Alee breviuscul(e ; remige l*^^ brevi, 2^', 3iia, 4ta, 5ta^ et 6ta 



cequalibus, longissimis, 

 Cauda rotundata. 

 Pedes longiy graciles, tarsorum squamis omnibus integris. 



Wings rather short ; the first quill short, the third, fourth, fifth, 

 and sixth equal, and longest. Tail rounded. Legs long, 

 slender ; all the scales of the tarsi entire. 



Type. Motacilla rubecola, Linn. 



This type occurs both in Europe and Africa. 



