lf)8 SYNOPSIS OF THE TROCHILID^. 



throat and breast brilliant yellowish-green, with a 

 silvery lustre ; tail wedge-shaped, green at the base, 

 gradually shading into pure white. Inhabits the 

 island of Trinite. 



27. T. TEPHROCEPHALUS ? Less. O. M. Ix. Crown grey ; 

 upper parts, throat, and breast, green ; belly and vent 

 greyish- white ; tail blackish-green, the outer feathers 

 tipped with white. Inhabits Brazil. 



Described from Lesson apparently in immature plumage. 

 '28. T. ALBICOLLIS? Less. O. M. Ixiii. Entirely green, 

 except a patch on the breast and vent white , tail 

 steel-blue, all the feathers, except those in the cen- 

 tre, tipped with white. Inhabits Brazil. 

 29. T. VIRIDISSIMA ? Vieill. Ois. Dor, 42. Less. O. M. 

 Ixxv. Upper parts golden-green ; throat and breast 

 green mixed with white ; belly and vent greyish. In- 

 habits Brazil. 



Numbers 27. and 28. are described from Lesson. 



PL. II. VOL. I 30. T. AVOCETTA, Avocet-billed Humming- 



Bird. L'Oiseau-mouche avocette, Less. O. M. xxiv. 

 Golden-green above ; throat green, forming a gorget ; 

 belly dull black ; a line of white along each side of 

 the body ; tail steel-blue, square. Inhabits Guiana. 

 PL. III. VOL. I 31. T. RECURVIROSTRIS, Recurved-billed 

 Humming-Bird Swain. Zoo/. Illust. 1st series, cv. 

 Oiseau-mouche a bee recourbe', Less. O. M. xxxvii. 

 Plumage brilliant green ; the throat with a gorget of 

 emerald green, occupying the breast ; centre of the 

 belly with a dark streak ; tail chestnut. Young with 

 the belly and vent white; bill serrated. Inhabits 

 Guiana. 



We have placed these two birds last in the Sub-family Trochi- 

 lus; from the curious form of the bill they will not answer 

 any of the general characters. Lesson makes a separate race 

 " Les avosettes" founded upon the turned up bill. 



