718 REPORT OF THE HARVARD AFRICAN EXPEDITION 
at nearly all points across Liberia; other collectors also regard it as common. 
Two males taken July 27 had enlarged testes (about 5 mm. long) and may have 
been breeding, but another from Banga, October 22, had them very small. 
An immature bird from Paiata, October 10, had the belly brighter yellow than 
adults, and the base of the bill a brighter orange. Cameroons birds are larger 
and the yellow at the edges of the base of the bill is more extensive as Banner- 
man has pointed out. Dr. Theiler found one alive, caught in a spider web. 
Cyanomitra verticalis verticalis (Latham). Green-headed Olive Sunbird 
Certhia verticalis Latham, Index Orn., vol. 1, p. 298, 1790: Africa.” 
Length 5.5 inches; head and throat steely green, the throat bluer; spot before eye black; 
body above olive green; below, including the under wing- and tail-coverts gray; a tuft of pale 
yellow feathers on each side of breast. Female with entire under side pale gray. Senegal to Angola. 
This is one of the rarer species, which we failed to find although Buttikofer 
secured specimens at Robertport, Monrovia, and the Junk River, and Lowe 
obtained it on the Kru coast at Nana Kru and Subono. It seems to be more 
common in the less rainy country immediately north and east of Liberia, for 
Kemp (1905) includes it as not an uncommon species in southeastern Sierra 
Leone and Thompson (1925) found it similarly frequent about Freetown, Sierra 
Leone. The former writer notes its fondness for clumps of banana trees, whence 
its local name of Banana Sucker. 
Cyanomitra cyanolaema (Jardine and Fraser). Smoky Sunbird 
Nectarinia cyanolaemus Jardine and Fraser, Contr. Orn., p. 154, 1851: Fernando Po. 
Larger, length 5.5 inches; male sooty above and below except forehead and throat which are 
steely iridescent blue, and a tuft of pale-yellow feathers at the side of the breast. Female, olive 
above, wings and tail dusky edged with olive yellow, throat smoky, belly clearer gray, flanks and 
under tail-coverts yellowish green. Gambia to Angola and the Lakes. 
Of these handsome though dull-colored sunbirds we saw occasional individuals 
about beds of flowering shrubs on the edges of clearings. A male from Lenga 
Town, August 20, and another from Banga, October 24, had the testes enlarged 
(5 mm.) and may have been breeding. Biittikofer records a few from Schieffel- 
insville and Robertport, and Oberholser had it from Mount Coffee. 
Anthreptes idius Oberholser 
Anthreptes idius Oberholser, Proc. U. 5. Nat. Mus., vol. 22, p. 33, 1899: Mount Coffee, Liberia. 
Length 5 inches; above dark green, wings fuscous edged with olive green, eye-ring olive yellow; 
below deep olive yellow, almost uniform but paler on chin; lining of wing olive yellow; bill dark 
horn, paler beneath. 
Nothing further seems to be known of this species than the original statement 
of Oberholser that it is not uncommon in the bush about Mount Coffee. The 
possibility is not excluded that it is the immature plumage of some other species. 
