OF NEW OB LITTLE KNOWN BIRDS. 295 



The smallest of the genus I have yet seen. Total length 

 3f inches ; bill, front -^ ; wings 2 ; tail, beyond, ^; base li; 

 tarsus ■^. The under plumage, and the upper tail covers, 

 which are very long, are pure white ; the flanks have a tinge 

 of light brown ; lores blackish, with a white line above ; the 

 white ring round the eye is wanting. 



45. ZosTEROPS ambigua. 



Above,, dark cinereous, tinged with olive yellow on 

 the head, ears, wings, rump, and tail : under parts 

 white : chin and under tail covers tinged with yellow- 

 ish : flanks Isabella. Bill rather lengthened. 



Inhabits Cayenne? Bullock's Mus. Nost. 



Differs from the New Holland species, to which it has the 

 closest resemblance, in being rather larger, in having only a 

 very faint yellowish tinge on the throat, and in the under tail 

 covers not being white ; the bill also is much longer. It was 

 stated to come from Cayenne ; and it is very singular that I 

 possess a drawing of this very species, made in the year 1806 ; 

 it was taken from a specimen which formed part of the 

 famous collection made there by the French, which was cap- 

 tured and sold by auction in this country in that year. 



46. Trichas superciliosus. 



Above, olive green ; beneath, white : head above, 

 nape, and ears, greyish black : a white line before and 

 above the eye : middle of the crown with a pale stripe : 

 under tail covers, yellow. Legs very long. 



Inhabits Brazil. Mus. Nost. 



Size of T. velatus. Innerwing covers and flanks olive yellow. 

 Wings 21 inches ; tarsus 1 ; middle toe and claw ^ ; hind ditto 

 ^. The crown is darkest on the sides, and pale grey in the 

 middle ; all the under parts, to the vent, pure white, tinged 

 with grey on the sides of the neck and breast. 



47. Trighas brachickictylus. 



Above, olive green ; beneath, yellow : a black fillet 

 enveloping the front, eyes, and ears, bordered above by 

 cinereous white. Lateral toes nearly equal, and shorter 

 than the hinder one. 



Inhabits, plentifully, the northern provinces of the 

 United States. 



u 4 



