v [Vol. x. 



however, vary among themselves in the amount of white on 

 the quills, which is the distinction given by Herr Martens ; 

 and this variation in the amount of white leads me to con- 

 sider that his H. finschi and the three birds from Baron von 

 Ilugel are only aberrations of H. longirostris." 



Mr. Ernst Hartert recorded the occurrence of a specimen 

 of Grallina picata on the little island of Koer in the Key 

 group. 



Mr. Hartert also exhibited the types of three new birds 

 collected near Gambaga, Gold Coast Plinterland. which he 

 named and characterized as follows : — 



COSSYPIIA GIFFARDI, Sp. n. 



Similar to C. albicapilla from Senegarnbia, but differing in 

 having much narrower white tips to the feathers of the 

 crown and occiput, so that these parts do not appear white, 

 but black with white crescentic bars. Wings and tail longer 

 than in C. albicapilla. Wing 135-137 mm., tail 145-148. 

 Sexes alike. This form is probably a representative of 

 C. albicapilla. 



Heliocorys modesta giffardi, sp. n. 



Closely allied to H. modesta, of which it is evidently only 

 a sub-species, but differs in being altogether paler and more 

 sandy in coloration ; the breast is less heavily spotted with 

 black, the underside paler, the wing 2 or 3 mm. shorter. 



Bessonornis (? Cossypha) gambag.e, sp. n. 



Very similar to Bessonornis modesta, Shelley, from Nyasa- 

 land, but differing in its rusty rufous flanks and under tail- 

 coverts. The lateral rectrices have not a complete bar aci'oss 

 the tips, but only an elongate blackish mark on the outer 

 Avebs and a small blackish spot on the inner web of the 

 outermost rectrix. The wing-quills and larger wing-coverts 

 have pale rusty-brown edges, and the upper surface is paler. 

 Wing and tail 3 or 4 mm. shorter. 



Mr. C. B. Horsbrugh exhibited a series of photographs 

 of nests and eggs taken on the Smolen Islands and in the 



