4:70 I'.lllltb or BRITISH GL'IANA. 



Geiv.is BRACK YGALBA Bon:ip. 



Bracliygalba Bonapai-te, Consp. Voluc. Zygod. p. 13, 1854. Type 

 B. alhigularis (Spix). 



Tliis genus is cliaracterized by tlie graduated tail, tiie middle 

 tail-feathers reachinor sliglitlv bevond the others, and the general 

 colour of the plumage is coppery bronze. The bill is compressed 

 and sharply pointed. 



323. Brachygalba lug-ubris. 

 Black-billed Jaca.mar. 



Galhiila higuhris Swains. Anim. in Menag. p. 329, 1838 (Brazil) ; 



Cab. in Schomb. Reis. Guian. iii. p. 718, 1848. 

 Braclujgalba Ivgubris Salvin, Ibis, 1886, p. 62 (Romima, ^NlerumeMts.) ; 



Sclater, Cat. B. Brit. Mus. xix. p. 171. 1891 (British Guiana); 



Brabourne & Chubb, B. S. Amer. i. p. 162, no. 1597, 1912. 



Adidi male. Head, hind-neck, fore-neck, breast, sides of body, 

 and under tail-coverts sooty-brown, paler on the chin and throat 

 and blackish on the thighs and under Aving-coverts ; middle of 

 abdomen white, as are also the median and greater under wing- 

 coverts ; back, wings, and tail blackish with steel-blue reflections. 



Total length 159 mm., culmen 44, wing G8. tail 51, tarsus 11. 



The description of the male is taken from an example collected 

 by Mr. I^IcC'onnell at Mount Eoraima in October 180^>. There are 

 four immature specimens from the same locality which are similar 

 to the adult, but have narrow white edgings to the feathers of the 

 upper parts and the bills are much shorter (25 mm.) and tipped 

 with white. 



Adult female. Like the adult male. AVing (38 mm. 



Breeding -season. Unknown in British (jruiana. 



Sest. Unrecorded in British Guiana. 



Eggs. Undescril>ed from British Guiana. 



Range in British Guiana. Mount Roraima {McConnell collec- 

 tion); Merume Mountains. Mount Roraima [Wldtely). 



Ea^tralimital Range. North-east Brazil, East Peru. 



Habits. According to Schomburgk (Reis. Guian. iii. p. 718, 

 no. 239) the habits and distribution of this bird are the .same as 

 those of G. alhirfntris, no. 238 (=G. lencogaster. p. 4G8). 



