210 
AVES. 
sus length of the exterior toe, depressed, scaly; wings long, the 
fourth quill longest; tail long, equal. 
Leptosomus viridis. — The African Cuckoo. 
Plate XLII. fig- 5. 
Crown, back, wings, tail, and circle round the eyes, rich iri¬ 
descent olive-green, reflecting in different directions, crimson, 
purple, brown, and golden-yellow; the whole under parts blue- 
gray ; irides orange; tail dusky-brown ; legs yellow. Sixteen 
inches long. Inhabits Africa. 
Genus 8. — SCYTHROPS.— Latham. 
Generic Character. —Bill long, convex above, compressed 
laterally, considerably bent at the tip ; upper mandible longitu¬ 
dinally grooved ; nostrils basal, naked, and round ; ophthalmic 
region naked; tarsus shorter than the middle toe, the two exte¬ 
rior ones united at the base ; tail long, and graduated. 
Scythrops Novce Hottandice. — The New Holland Scythrops. 
Plate L. fig. 9. 
Lead-coloured, and the tail feathers transversely barred with 
black; bill four inches long. Seventeen inches long. Inhabits 
New Holland. 
Genus 9.—SAUROTHERA. — Vieillot. 
Generic Character. —Bill longer than the head, slender, late¬ 
rally compressed, convex above; edges of the upper mandible 
straight, slightly dentated; point drooping suddenly; nostrils 
oblong, covered by a membrane ; tarsus short, smooth, and an- 
nulated; front toes slightly attached at the base, the hind ones 
quite free; wings medium length; the bastard wing very short; 
the second and third quills the longest; tail with ten feathers. 
Saurothera vetula. — The Long-Billed Cuckoo. 
Plate XXXVIII. fig. 10. 
Upper parts yellowish-brown; throat gray; venter and cris- 
sum chestnut-brown ; under side of the tail feathers white, fine¬ 
ly barred with blue-black; irides yellow; space round the eyes 
orange; bill white, with nuchal bristles at its base; feet dull 
gray. Sixteen inches long. Inhabits St Domingo. 
