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spection of Mr. P. L. Sclater, who has paid much attention to South 
American birds, and who pronounces them new to science; I there- 
fore embrace the earliest opportunity of placing them upon record. 
1. CaMPpYLORHYNCHUS HyPostTictTus, Gould. 
General hue of the upper surface brown, the feathers edged with 
greyish-brown, producing a somewhat spotted appearance ; from 
above each eye, down the side of the neck, an obscure streak of 
buffy-white ; upper tail-coverts dark brown, fringed with reddish- 
brown; along the margins of the primaries a series of dark brown 
dots on a light brown ground; tail brown, with lighter edges dotted 
with dark brown like the primaries; under surface greyish-white, 
with a streak of light brown down the centre of each feather, small 
on the throat, gradually increasmg on the abdomen, and assuming 
the form of bars on the flanks; under tail-coverts buff, barred with 
dark brown ; irides red; bill light horn-colour ; feet olive-brown. 
Total length, 83 inches; bill, 1 ; wing, 33; tail, 32; tarsi, 1. 
Hab. River Ucayali in Peru. 
Remark.—This species is very closely allied to C. scolopaceus, 
Spix, but differs in being of a rather larger size, in having a some- 
what more curved bill, a more uniformly coloured back, and in the 
greater number and larger size of the brown markings of the under 
surface, which, moreover, extend on to the upper part of the neck 
and throat. 
2. CHAM2ZA NOBILIS, Gould. 
Head very dark brown suffused with rufous ; upper surface, wings 
and tail-coverts rich reddish or saffron-brown; tail reddish-brown, 
crossed by a broad black band near the end, and slightly tipped with 
buffy-white on the centre feathers, and much more conspicuously 
on the lateral ones; lores fawn-colour; under surface white, the 
feathers of the breast broadly, and those of the centre of the abdo- 
men narrowly bordered on the sides with brownish-black ; on the 
flanks the latter hue increases to such an extent as to leave only a 
lanceolate stripe of the white down the centre of each feather ; under 
tail-coverts buff, speckled with brown; above each eye a narrow 
streak of buff commencing a little in advance of the centre of the 
eye, and extending downwards as low as the nape ; irides brown ; 
bill black ; feet reddish-brown. 
Total length, 94 inches; bill, 11; wing, 43; tail, 24; tarsi, 1}. 
Hab. Chamicurros, on the eastern side of Peru. 
Remark.—This is the largest and perhaps the finest species of the 
genus: its legs and feet are very powerful, its bill thick and strong, 
its tail very short and rounded, its wings concave, and its plumage 
offers that silkiness to the touch which is so characteristic of the 
members of the genus Chameza, of which it forms im every sense a 
typical example. 
3. Formicartius NIGRIFRONS, Gould. 
Band across the forehead black ; crown, occiput and nape deep 
