1863.] MR. A. R. WALLACE ON THE BIRDS OF BOURU. 23 



above ; but these small Cuckoos vary so much in their plumage as 

 to render it very difficult to decide. My specimens seem to show 

 that the same species extends over Celebes, the Moluccas, and New 

 Guinea ; and it may be probably the same as C. tymbonomus, Miill. 



EUDYNAMIS RANSOMI. 



E. ransomi, Bp. Consp. Gen. Av. p. 101. 



Mas ad. nigro-violaceo nit ens ; rostro pallide viridi-olivaceo ; 

 pedibus plumbeis. 



The female and young male were described by Bonaparte. The 

 adult male is, like others of the genus, entirely shining blue-black ; 

 iris crimson. 



Total length 18-19 inches; wing 8-8| inches; bill, to front, 

 \^ inch. 



Hab. Bouru and Ceram, 



Centropus mkdius. 



C. medius, Bp. Consp. Gen. Av. p. 108. 



Bill black ; feet blackish lead ; iris olive-brown. In the immature 

 bird the plumage above is pale rufous, banded and spotted with 

 black ; the tail bronzy black, with about sixteen rufous bands ; the 

 under surface yellowish, with small dark spots ; the thighs and vent 

 dusky ; and the bill pale horn. 



Length 18-19 inches ; wing 7J-8 inches ; bill, from gape, 1|^ inch. 



Hab. Bouru, Ceram, and Gilolo. 



TODIRAMPHUS COLLARIS. 



Alcedo collaris. Scop. ; Sw. Zool. 111. t. 57. 

 Hab. Bouru and the whole archipelago. 



TODIRAMPHUS SANCTUS. 



Halcyon sancta, Vig. & Horsf. ; Gould, Birds of Austr. ii. pi. 21. 

 Hab. Bouru and the islands eastward. 



Tanysiptera acis. 



Supra nigra, subtus albo-rufescens, pluniis tenuiter nigra margi- 

 natis ; plumis pilei cceruleo marginatis, superciliis et corona oc- 

 cipitali magis ccBruleis ; tectricibus alarum minoribus ccerideis; 

 wopycjio albo ,• tectricibus caudce superioribus albis, rufo tinctis 

 et nigro marginatis ; rectricibus mediis elongatis eceruleis, ad 

 basin fusco et albo maculatis, spatulis albis cceruleo marginatis; 

 aliis albis, externe fusco-cceruleo marginatis, interne albo et 

 nigro maculatis ; gula albescente ; tectricibus caudce inferioribus 

 albis. 



Forehead and crown black, with the feathers blue-margined ; a 

 Wud over the eyes and round the nape brighter blue ; ear-coverts, 

 back, and wings deep black, with the lesser wing-coverts blue-mar- 

 gined, margin of the wing blue-tinged ; primaries with the outer 

 webs pale-edged towards the tips ; under surface of the body pale 



