562 



AVES. 



ijiiills brownish ; tail slightly rounded at tlie end. Eight iuclies and a liaK 

 ong. Iiiliabits South America. 



Genus 8.— CERTHl A.— limieeus. 



Generic Character.— Bil[ long-, or of medium length in some species ; 

 slender, curved, triangular, and compressed ; nostrils basal, horizontal, and 

 half closed by a membrane ; three toes before and one behind, the exterior 

 adiiering at its base to the middle one ; claws much hooked, that on the 

 hallux longest; tail graduated; shafts stiff and pointed; fourth quill 

 longest. 



Certhia familiaris. — The Common Creeper. Plate xxxvii. fig. 12. Yel- 

 lowish-brown above, throat, breast, and belly wliite, the criasum ochre-yel- 

 low ; upper mandible dusky, lower one wliite ; tail grayish ; legs and toes yel 

 lowish-brown. Five inches and a half long. Inhabits Eiu'ope. 



Genus 9.— CCEREBA.— BmsoJi. 



Generic Character. — Bill slightly arched, thick at the base, and sharp, 

 pointed ; edges of the mandibles inflected; tongue long, but not extensible ; 

 bifid and filamentous ; tarsus longer than the middle toe ; lateral toes equal ; 

 tail of medium size. 



Ceerebii ci/anea. — The Cyanean Coereba. Plate xxix*. fig. 9. Throat, neck, 

 breast, abdomen, and crissum, rich cobalt blue ; wings golden-yellow ; back, 

 wings, and tail, black, with an oblique blue band ; inside of the front, and 

 crown of the head, bright green ; ophthalmic region deep black ; irides 

 brown; bill black; feet flesh-colour; claws black. Five inches long. In- 

 habits Cayenne. 



Gemis lO.—TKOCHlLVS.—Linnaus. 



Generic Character. — Bill long, straight, arcuated in some species, tubular, 

 very slender, with the base depressed and acuminated; upper mandible 

 nearly enveloping the under one ; tongue long, extensible, bifid, and tubu- 

 lar ; nostrils open before, and covered by a membrane ; leg very short ; tar- 

 sus shorter than the middle toe ; the three anterior toes almost divided ; 

 wings long, graduated ; the first quill longest. 



Trochilus multicolor.— Thfi Harlequin Humming.Bird. Plate xxxvii*. fig. 

 6. Crown of the head, chin, throat, breast, and upper part of the wings, 

 of a rich, shmiug, golden-green ; cheeks, coUum, and back of the neck iri. 

 descent ultramarine blue ; abdomen and crissum orange ; lower part of the 

 neck with a collar of intense black ; separating the blue from the verdigris 

 blue of the back ; lower part of the wings and tail fawn-coloured brown ; bill 

 very long, which, with the legs, are pale fawn. Four inches long. Inhabits 

 South America. 



Trochilus cohcbris. — The Ruby-Throated Humming Bird. Plate xxxvii. 

 fig. 7. Described, vol. iii. p. 298. 



Genus II.— NECTARINIA.— /W^-er. 



Generic Character. — Bill long, slender, subulate, arcuated, expanded, and 

 depressed at the base ; mandibles of equal length ; the lower one inflected, 

 and partly enveloped in the upper one ; tongue long, bifid, extensible, and 

 tubular ; nostrils situated near the base, closed by a naked membrane ; 

 tarsus as long as the middle toe, in some species longer ; the lateral toes at- 



