360 Mr. Svvainson on several new groups in Ornithology/. 



-^SETOPHAGA. 



Rostrum parvum ; cuhnine carinato. 



Ala mediocres ; remigibus \f"d et 4'« aqualibus, Ida et 3''^ aquali- 



bus, longissimis. 

 Cauda sub-elongata, rotundata. 

 Pedes grucileSy tarsis squamis aiiterioribus divisis, lateralibus in- 



tegris. 



Bill small, culmen carinated. Wings moderate ; first and fourth 

 quills equal, second and third equal and longest. Tail rather 

 lengthened, rounded. Feet slender, anterior scales divided, 

 lateral scales entire. 



Type. Muscicapa ruticilla. Linn. 



I already know of four other species belonging to this group, 

 all of which inhabit the temperate regions of America. It repre- 

 sents, in the new world, the Australian genus Rhipidura, just 

 characterized by Dr. Ilorsfield and Mr. Vigors, an affinity mani- 

 fested by the observations of Wilson. 



Family Columbida. 

 -PERISTERA. 



Rostrum gracile, sub-emarginatum. 



Alee rotundata; ; remige primi brevi, abrupte attenuatd; ^^ et 



5*afere (squalibus, 3''a et 4' (equalibus, longissimis. 

 Cauda rotundata. 

 Pedes fortes, nudi, sub-elongati; tarsis squamis anterioribus im- 



bricatis, lateralibus nullis. 



Bill slender, sub-emarginate. IVings rounded, the first quill 

 short and abruptly attenuated, second and fifth equal, third 

 and fourth equal and longest. Tail rounded. Feet strong, 

 naked, somewhat lengthened; anterior scales of the tarsi im- 

 bricate, lateral scales none. 



Type. Col. cinerea. Temm. 



