HAPALODERMA CONSTANTIA, Sharpe Sf Ussher. 
West-African Trog*on. 
Specific Character. 
Mas. Similis H. narinse, sed rectrice extima pure alba et tectricibus alarum canis tenuissime nigro 
vermiculatis distinguendus. 
Male. —General colour of the upper surface shining green, as well as the entire throat and fore 
neck, the green of these parts always having a kind of olive-golden lustre, changing to 
bright grass-green on the rump and upper tail-coverts; the four centre tail-feathers deep 
blue, with a narrow border of green; the two next bluish, shading off into brown; the 
terminal half pure white, increasing in extent on the penultimate feathers, the outermost 
being pure white excepting at the extreme base; all the wing-coverts (excepting the 
least ones, which are green like the back) and secondaries greyish white, extremely finely 
pencilled with black lines; primary coverts greyish black; primaries blackish, the 
outermost edged with white; under surface of body rich crimson ; under wing-coverts 
greyish black, like the inner lining of the wing; bill light green ; iris dark. 
Total length 10g inches ; wing 5|; tail 6|. 
Hapaloderma narina. Cass. Pr. Philad. Acad. 1857, p. 38. 
Trogon narina. Hartl. Orn. W.-Afr. p. 263. 
Hapaloderma constantia. Sharpe & Ussher, Ibis, 1872, p. 181. 
This beautiful species has long been known to ornithologists, but has been confounded with the Narina 
Trogon of South Africa, from which it is certainly specifically distinct. It is known at present only from 
the forest-regions of the Gold Coast and Gaboon, having been procured in the latter country by Du Chaillu. 
Riis sent specimens from Aguapirn ; and the typical examples were killed in the Denkera district of the Gold 
Coast by Mr. St. Thomas D. Aubinn, a native hunter in the employ of Governor Ussher, after whose 
daughter Constance the species is named. 
The principal figure in the Plate is of the size of life, and has been drawn from one of the typical 
specimens kindly given to me by Mr. Bowdler Sharpe. 
