556 AVES. 



and neck sPa-green ; hottom of chocks white ; and a patcli of orange round 

 tlie eyes. Nine inches long-. Inhabits Africa. 



Genus 7.— LEPTOSOMUS.— Vieillot, 



Generic Character. — Kill laterally compressed, and nearly triangnlar ; 

 keel prominent; upper mandible slightly bent, the lower one straight ; nos. 

 trils placed in the middle of the mandible, partly closed by an elongation ot 

 the horny substance; tarsus length of the exterior toe, depressed, scaly; 

 wings long, the fourth quill longest ; tail long, equal. 



Leptosomus viridis.—The Africau Cuckoo. Plate xxix**. fig. 5. Crown, 

 biick, wings, tail, and circle round the eyes, rich iridescent olive-green, re- 

 flecting 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.~SCYTHR0PS.—Latha}n. 



Generic Cliaratter.— Bill long, convex above, compressed laterally, con. 

 siderably bent at the tip ; upper mandible longitudinally grooved ; nostrils 

 basal, naked, and round; ophthalmic region naked; tarsus shorter than 

 the middle toe, the two exterior ones united at the base ; tail long, and 

 graduated. 



Scythrops Nov(B Hollandim.—lha New Holland Scythrops. Plate xxxvii. 

 fig. 9. Lead-coloured, and the tail feathers transversely barred with black ; 

 bill four inches long. Seventeen inches long. Inhabits New Holland. 



GewMJ 9.— SAUROTHERA.— FzVj'Ho*. 



Generic Character. — Bill longer than the head, slender, laterally compres. 

 sed, convex above ; edges of the upper mandible straight, slightly dentated ; 

 point drooping suddenly ; nostrils oblong, covered by a membrane ; tarsus 

 short, smooth, and anuulated ; 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. 



Saurothcra vetuta. The Long-Billed Cuckoo. Plate xxvii. fig. 10. Upper 

 parts yellowish-brown ; throat gray ; venter and crissum chestnut-brown ; 

 under side of the tail feathers white, finely barred with blue-black ; irides 

 > ellow ; space round the eyes orange ; bill white, with nuchal bristles at its 

 base ; feet dull gray. Sixteen inches long. luliabits St Domingo. 



Genws 10.— PTEROGLOSSUS.—7//;>er. 



Generic Character. — Bill slender, longer than the head, arcuated above, 

 externally serrated and curved at the point ; nostrils vertical, round, and 

 open ; tarsus same length as the external toe, the two anterior toes adher- 

 ing to the second joint ; wings short, vaulted, the first quills graduated ; 

 tail long and graduated. 



Pteroglossus macvlatus.—The Spotted-Billed Aragou, Plate xxx. fig. 4 

 Head, back, sides of the neck, throat, and breast, deep black ; wing-covert-i 

 s:ift"ron-yellow ; upper parts and tail dusky sap-green ; head divided froui 

 the neck by a band of primrose-yellow ; quills blackisli-brovvn ; the tail tip- 

 ped with orange-brovvn. Length, including the bill, twelve inches. Inha- 

 bits Brazil. 



