CYANOMITRA HARTLAUBI. 135 



Adult Male. Above, dusky olive, wings dark brown, tail black, strongly 

 graduated, with white ends to all but the centre pair of feathers. Entire throat 

 deep metallic bluish green ; chest bright sulphur yellow, fading into yellowish 

 white on the remainder of the body. Total length 4-2 inches, culmen 0-65, 

 wing 2-15, tail 1*7, tarsus 0-7. St. Thomas Is. (P. Newton). 



Adult Female. Similar to the male, but differs in having the throat 

 dusky black with the edges of the feathers yellowish buff, in the chest being 

 buff like the abdomen, and in the base of the lower mandible being pale. 

 Total length 3*5 inches, culmen 055, wing 19, tail 1-4, tarsus 0-65. 

 St. Thomas Is. (F. Newton). 



The Saint Thomas Yellow-breasted Sunbird is confined to 

 the Island of St. Thomas, which is situated almost on the 

 Equator at about 150 miles from the West African coast. 



Mr. F. Newton who discovered the species informs us that 

 it is known to the natives as " Xele-Xele," so we may infer 

 that it is fairly abundant on the island. 



I only know the species from the two specimens in the 

 British Museum labelled male and female, so have described 

 them as such, but in the latter specimen the basal portion of 

 the lower mandible is pale as if from immaturity, and the dusky 

 colouring of the throat suggests the possibility of its being 

 a young male. 



This is one of the three species which are probably confined 

 to the islands off the coast of West Africa, comprising, besides 

 the present species, Elmoeerthia thomensis, from the same island, 

 and Cyanomitra hartlaubi from Prince's Island. 



Cyanomitra hartlaubi. 



Cyanomitra hartlaubi (Verr.), Shelley, B. Air. I. No. 70 (1896). 

 Cinnyris hartlaubi, Shelley, Mon. Nect. p. 295, pi. 94 (1879) ; Gadow, 

 Cat. B. M. ix. p. 79 (1884). 



Adult Male. Upper surface and sides of the head olive with a few 

 feathers on the sides of the forehead tipped with metallic blue ; tail with 

 pale ends to the feathers broadest on the outer ones. Beneath olive yellow 



