390 



pagus bidentatus. In the Norwich Museum are specimens of A. 

 pileatus from Brazil; Ecuador, Pallatanga (Fraser) ; Chili, and Straits 

 of Magellan, — and of A. cooperi from California, Monterey ; Texas 

 and Mexico, Orizava. The adult specimens of the present bird 

 from Oaxaca show a whole-coloured hood nearly as dark as in A. 

 pileatus, which younger specimens never do, whereas, as stated above, 

 A. pileatus does so in all ages." — J. H. G. in epist. 



209. Tinnunculus sparverius (Linn.). 

 Villa Alta (Jan. 1859). 



210. Hypotriorchis ruftgtjlaris (Daud.): Strickl. Orri. Syn. 

 p. 88. 



Playa Vicente. 



211. ICTINIA PLUMBEA (Gm.). 



Playa Vicente (March), $ adult. 



212. Circus htjdsonicus (Linn.). 

 Oaxaca. 



Fam. STRiGiDiE. 



213. Strix pratincola, Bp. 

 Oaxaca. 



214. Brachyotus cassinii, Brewer. 

 Oaxaca. 



215. Bubo virginianus (Gm.). 

 Oaxaca. 



Fam. Columbidje. 



216. COLUMBA NIGRIROSTRIS, Sp. nOV. 



Obscure olivascenti-fusca ceneo vix tincta, capite et collo supero 

 cum corpore subtus et tectricibus subalaribus vinaceis, gula 

 albescentiore, ventre plumb escentiore : remigibus et rectricibus 

 fusco-nigricantibus unicoloribus : rostro nigro : pedibus coral- 

 lino-rubris. 



Long, tota 10'5, alse 6'5, caudse 4*6. 



Hab. In statu Oaxaca reipubl. Mexican ee. 



In spite of the number of new species that have lately been de- 

 scribed among the Pigeons, this bird appears to have remained un- 

 noticed. There is no specimen of it in the British Museum ; and it 

 is not included in Bonaparte's ' Conspectus,' which contains such an 

 elaborate account of the family. I therefore consider it to be pro- 

 bably new. Its nearest allies are Columba flavirostris, which has 

 the bill yellow, and C. ruf na, which has a cinnamomeous-brown tail, 



