488 cypselid.t:. 



Achtli. Above, -wings and tail glossy blue-black; chin, throat, 

 upper breast, sides of breast, and under wing-coverts slaty black ; 

 rump and upper tail-coverts, lower flanks, abdomen, vent, ai:d under 

 tail-coverts white, with black shafts. Total length about 4-2 inches, 

 wing 4-7 to 5, tail 1'7. 



Ilab. West Africa : Sierra Leone to Congo, Island of Fernando Po. 



a. Ad. sk. West Africa. Sir li. Sabine [P.]. 



(Type of the species.) 



b. Ad. sk. Fernando Po. A. Bouvier Coll. 



c. Ad. sk. Yamhuya, Aruwimi R. Mrs. Jameson [P.]. 



22. Chaetura ussheri. (Plate X.) 



Chsetura ussheri, Sharpe, Ibis, 1870, p. 483 (Fantee) ; Shell. ^- Buckl. 

 Ibis, 1872, p. 284 ; Ussher, Ibis, 1874, p. 47 (Gold Coast). 



Adult. Dark brown above, a large white ring round the body, 

 across the rump and lower abdomen ; chin and throat dull white, 

 with dark brown edges to the feathers ; abdomen brown, a whitish 

 shade along the middle ; under tail-coverts and under wing-coverts 

 dark brown; primaries, secondaries, and rectrices narrowly mar- 

 gined with white, a character which is not very obvious if the 

 plumage is abraded. Total length about 5 inches, wing 5-6, tail PO. 



Hub. West Africa, Gold Coast. 



a, b. Ad. sk. Fort Victoria, Cape Coast, Sharpe Coll. (Types 



August ( Ussher). of the species.) 



c. Ad.sk. Cape Coast (//rtyjjcs). Sharpe Coll. 



<Z. Ad. sk. Cape Coast (&6's/ier). Shelley Coll. 



23. ChsBtura cassini. 



Chfetura sabinei, Cass, (nee Grai/) Pruc. Acad. Sc. Philad. 1859, p. 8.3. 

 Chfetura cassini, .SW. P. Z. ,S. 1803, p. 20-5 ; id. P. Z. S. 1805, p. H13 ; 



id. J. f. O. 1867, p. 136 ; Grai/, Hand-l. i. p. 67 (1869) ; IShelleij, 



Ibis, 1890, p. 168 (Aruwimi P.)- 

 Acanthylis hartlaubi, Jard. Edinb. Journ. 1863, p. 147. 



Adult. Above glossy black, except a narrow white band across 

 the upper tail-coverts ; chin and upper throat whitish with dark 

 shaft-stripes ; jugulum and throat brownish grey ; remainder of 

 under surface white, like the small band across the upper surface, 

 with fine black shaft-lines ; sides of body and under tail-coverts 

 blackish. Total length about 4-8 inches, wing 6 to 6'5, tail 1-2. 



Bab. West Africa : Congo, Gaboon. 



a. Ad. sk. Gaboon. DuChaillu Coll. 



(Type of the species.) 



b. Ad. sk. Gaboon (DuChaillu). Jardine Coll. 



(Type of Acanth. hartlaubi, Jard.) 



c. c? ad. ; d, e. Landana, Congo, July (Petit). Sharpe Coll. 

 $ ad. sk. 



