30 TTEANNID^, 



pallida ; pedibus saturate plumbeis. Long, tota 3'70, alae 1"95, eaudse 1-45, rostri a rictu 0-4, tarsi 0-6. 

 (Descr. exempl. ex Cozumel I., Yucatan. Mus. nostr.) 



Hah. North America, Texas ^ '^, Arizona i*' i^. — Mexico, Xenotencal and Aldama in 

 Tamaulipas {W. JB. Richardson), Mazatlan, San Bias {Grayson^ Presidio near 

 Mazatlan {Forrer), San Andres Tuxtla {Salle ^), Tehuantepec {Sumichrast % Merida 

 in Yucatan (Schott^), Cozumel I. (G. F. Gaumer) ; Guatemala, Escuintla {0. S.^) ; 

 Nicaragua, Corinto {0. 8.). — Ecuador^; Brazil, Bahia [Mus. nostr.). 



The specimen described above is of rather small dimensions, another larger one from 

 the same source has a wing 2*1 inches long, and is as large as one from the vicinity of 

 Mazatlan. The birds found along the Mexican frontier in Arizona and the valley of 

 the Eio Grande have been separated by Mr. Brewster, and recognized by Mr. Eidgway 

 as 0. imherbe ridgxoayi and 0. imberhe, the former being described as larger and greyer 

 with hardly any sulphur-yellow tint to the lower plumage, and with a bill larger and 

 thicker. This race extends, according to Mr, Eidgway, as far south as Mazatlan. We 

 have a specimen from the last-named locality, but are unable to see wherein it diflfers 

 from our series from more eastern and southern places. Moreover, it seems to us that 

 an example from Sarayacu in Ecuador and two from Bahia in Brazil are not sufficiently 

 distinct to admit of separation. The former is a young bird the latter adult, slightly 

 darker in general tint, and with somewhat darker heads and greyer chests. 



Mr. Sennett first discovered this species in the valley of the Rio Grande at Lomita ^, 

 where others have since been found by Mr. Frazer^- Mr. Richardson has now sent us 

 specimens from the State of Tamaulipas on the southern side of the valley. 



The Arizona birds were shot by Mr. F. Stephens near Tucson, where, however, they 

 were not common. The males he describes as having a habit of perching on the tops 

 of trees and uttering a singular song at sunrise. 



We only met with 0. imberhe on one occasion in Guatemala, when a female was 

 secured in January near Escuintla, others being observed in the vicinity. Our two 

 specimens from Nicaragua were shot, 16th March 1863, close to Corinto on the Pacific 

 coast ; they are both young birds \n their first plumage. On both occasions the birds 

 were observed on the outer branches of forest-trees on the edge of clearings. 



2. Ornithion pusillum. 



Myiopatis pusilla, Cab. & Heine, Mus. Hein. ii, p. 58'; Pelz. Orn. Bras. p. 106'. 

 Ornithion pusillum, Scl. P. Z. S. 1873, p. 577'; Cat. Birds Brit. Mus. xiv. p. 126*. 

 Camptostoma imberbe, Lawr. Ann. Lye. N. Y. vii. p. 473 ' ; Taylor, Ibis, 1864, p. 86 ^ 

 Camptostoma flaviventre, Sol. & Salv. P. Z. S. 1864, p. 358', 1867, p. 576 '; Salv. P. Z. S. 1870, 

 p. 197'; Ibis, 1885, p. 294'°. 



fraecedenti similis, sed dorso toto olivaceo, fasciis alarum duabus sordjde albis et corpore subtus flavicante 

 distinguendum. 



JIab. Panama, Bugaba (ArcS ^), Lion-Hill Station {WLeannan ^ ''). — Colombia ^ ; 

 Amazons Valley ^ » ,• Trinidad ^ ; Guiana ^^, 



