346 



HIRUNDINID^. 



Ungues compressiusculi, gra- 



cili. 

 Alee 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. SpLv, Nova Avium, pi. 4. a. — Inhabits 

 Brazil. 



GENUS V. b.— 



Rostro Gymnopi slmillimo, 

 breviori, acuto, minvis 

 adunco, et circa oculos 

 multo minus nudo : alts 

 longioribus, caudam bre- 

 viorem, seqiiantibus : wa- 

 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 nostrils 

 rounded: the throat not 

 naked. 



-f- Sp. 1. Mi. ochrocephalus. Spia', Nova Avium, pi. v. — Inhabits 

 . Brazil. 



GENUS XXIX. b — NAUCLERUS, Vigors. 



The characters of this genus are detailed in the 

 second volume of the Zoological : the typical species 

 is Elanus Riocourii. — Steph. v. xiii. 2. 49. 



The genus Bidens, Spix, is synonymous with Har- 

 PAGus, Vigors : the former author describes several 

 species. 



INSESSORES. 



HIRUNDINIDyE. 



The genus Micropus, Meyer, is synonymous 

 with Cypselus. Illiger. 



