186 
AVES. 
panding, point somewhat tumid and compressed; upper man¬ 
dible convex, bent towards the point, and notched ; lower man¬ 
dible straight, nearly the length of the upper one; nostrils late¬ 
ral, oval, at the base of the bill, hidden by thick-set hairs; legs 
short, slender; lateral toes unequal, and united at the base; 
fourth and fifth quills the longest. 
Ceblepyris Vaillantii. —Le Vaillant’s Ceblepyris. 
Plate XLII*. fig. 5. 
Slate-gray above, under parts paler; breast and ophthalmic 
region dusky; quills brown, externally edged with white; tail 
doubly wedged. Six inches and a half long. Inhabits Africa. 
Genus 15. — CORACINA.— Vieillot. 
Generic Character .—Bill angular, thick, and strong, convex 
above, compressed at the point, slightly notched; nuchal bris¬ 
tles slender and short; nostrils basal, circular, the fore half 
open, and the other half closed by a membrane; legs strong, 
tarsus longer than the middle toe; fourth and fifth quills longest. 
Coracina cephaloptera. — The Helmeted Chatterer. 
Plate LI. fig. 6. 
Plumage blue-black, breast and remiges of the wings black¬ 
ish-brown ; bill dusky, irides reddish-brown, head surmounted 
by a very large helmet of reflected plumes; feathers of the neck 
thick, and terminating like a cravat; jugulum naked; feet, legs, 
and claws, lead-coloured. Thirteen inches long. Inhabits 
Brazil. 
Genus 16. — QUERULA. — Vieillot. 
Generic Character .—Bill much depressed, triangular, both 
mandibles tumid; upper mandible sloping, with a small notch at 
its tip ; under mandible with the point turned up, and very thin; 
base with long nuchal bristles, both above and below; nostrils 
basal, covered with the bristles; tarsus length of the middle 
toe; exterior toe joined to the tarsus, as far as the first joint, in- 
