346 



HIRUNDINIDiE. 



Ungues compressiusculi, gra- 

 cili. 



AI(^ cruciales, cauda aequales. 



Claws compressed, slender. 



Wings cruciate, as long as 

 the tail. 



Sp. 1. Gy. fasciatus. Spix, Nova Avium, pi. iv. — Inhabits Brazil. 

 Sp. 2. Gy. strigillatus. Spia-j Nova Avium, pi. 4. a. — Inhabits 

 Brazil. 



GENUS V. b.— 



Rostro Gymnopi simillimo, 

 breviori, acuto, minus 

 adunco, et circa oculos 

 multo minus nudo : alis 

 longioribus, caudam bre- 

 viorem, sequantibus : 7ia- 

 ribus rotundis: gula non 

 nuda. 



MILVAGO, Spix. 



Beak similar to that of 

 Gymnops, shorter, acute, 

 less hooked, and much less 

 naked round the eyes : 

 wings longer, shorter than 

 the tail, equal : the 7iostrils 

 rounded: the throat not 

 naked. 



Sp. 1 . Mi. ochrocephalus. Spio", Nova Avium, pi, v. — Inhabits 

 Brazil. 



GENUS XXIX. NAUCLERUS, Vigors. 



The characters of this genus are detailed in the 

 second volume of the Zoological Journal : the typical 

 species is Elanus Riocourii. — Steph, v, xiii. % 49. 



The genus Bidens, Spix, is synonymous with Har- 

 PAGus, Vigors : the former author describes several' 

 species. 



INSESSORES. 



HIRUNDINID^. 



The genus Micropus, Meyer, is synonymous 

 with Cypselus. Illiger. 



