observed during the Voyage of t lie 'Valhalla.' 679 



from the brown to the grey and white plumage of the adult. 

 The note much resembles the call-note of our Blue Tit. 



IXOCINCLA MADAGASCARIENSIS (P. L. S. Mull.). 



Ixocincla madagascariensis Sharpe, Cat. B. B. M. vi. p. 45. 



Iris dark brown ; bill orange ; tarsi and toes light brown. 



Two males and three females, adult. One male imm. 



This thrush-like Bulbul is a very abundant species in 

 Mayotte. All the examples which I obtained were in very 

 bad plumage, but I cannot see the slightest difference 

 between the specimens from Mayotte and those from Mada- 

 gascar. Joanna and Grand Comoro Islands are given in 

 the ' Catalogue of Birds ' as the habitat of /. parvirostris. 

 I saw numbers of these birds (/. madagascariensis) at every 

 part of the island that we visited, from the mangrove 

 swamps to the highest woods. 



ZoSTEROPS MAYOTTENSIS Schlegel. 



Zosterops mayottensis Gadow, Cat. B. B. M. ix. p. 191. 



Six males, four females, and one example of uncertain sex. 



This White-eye is by far the most abundant bird on 

 Mayotte, especially in the mangrove swamps, where I found 

 it in large flocks. It is peculiar to the island. 



ClNNYRlS COQUERELI (Verr.). 



Cinnyris coquereli Gadow, Cat. B. B. M. ix. p. 39. 



Six males and three females. 



A very common species on Mayotte, especially among the 

 mangroves ; it was in perfect plumage at the time of our 

 visit. As the plumage of the female has not yet been 

 described, I append a short account of it. 



Adult ? , Mayotte, 25 Feb. 1906.— Above dark greenish 

 grey, rump paler, a faint green sheen on the crown of the 

 head ; chin, throat, and upper breast pale grey, each feather 

 centred with black, rest of under-parts bright gamboge- 

 yellow; under-tail-coverts greyer; under-wing-coverts white, 

 axillaries pale lemon-yellow, quills black, wing-coverts with 

 a bluish sheen ; tail very deep blue, upper tail-coverts deep 

 metallic green. Size slightly smaller than the male. 



