AYES. 
219 
Xenops genibarbis — The Xenops. 
Plate L. tig. 4. 
Reddish-brovvn above, gray- brown on the under parts; gena, 
ophthalmic region, throat, and breast, white, with a white spot 
under the ear-coverts ; medium quills brown-black, with reddish 
margins. Four inches and a half long. Inhabits Brazil. 
Genus 6.—A NAB ATE S.— Temminck. 
Generic Character .—Bill straight, not so long as the head; 
compressed, and deeper than broad at the base, somewhat bent at 
the point; nostrils basal, lateral, ovate, and hidden by a feather¬ 
ed membrane; tarsus longer than the middle toe ; the exterior 
toe adhering to the length of the joint of the second phalange; 
the interior one joined at the base ; wings short. 
Anabates leucophrus. — The White-Browed Anabates. 
Plate XLII*. fig. 7. 
Upper parts umber-brown; throat pale ochreous yellow; 
cheeks, neck, breast, and abdomen, umber-brown, paler towards 
the crissum; tail rich Indian-red; a white streak extends over 
each eye, to nearly the occiput; bill yellow-brown; feet and 
legs dusky. Nine inches and a half long. Inhabits Brazil. 
Genus 7.—OPETIORH YNCHUS.— Temminck. 
Generic Character. —Bill somewhat longer than the head, 
slender and subulate, depressed at the base, and compressed at 
the tip; nostrils lateral, a little way from the base of the bill, 
half closed by a naked membrane ; tongue short, cartilaginous ; 
tarsus double the length of the middle toe; lateral toes of equal 
length, the exterior one adhering at the base ; wings short; the 
first three feathers graduated, the third and fourth longest; tail 
short, and somewhat graduated. 
Opetiorhynclius rufus. — The Reddish Opetiorhynchus. 
Plate XLII. fig. 8. 
Reddish; darker on the upper parts, and inclining to pale- 
yellow beneath; quills brownish; tail slightly rounded at the 
end. Eight inches and a half long. Inhabits South America. 
s 2 
