452 YELLOW-BILLED MAGPIE. 
chiefly greenish-black, but with various tints. The breast and sides 
are pure white ; the legs, abdominal region, lower tail coverts, and lower 
wing-coverts, black. 
Length to end of tail 18 inches, to end of wings 114; wing from 
flexure 72; tail 9419; bill along the ridge 1;4; tarsus 143; first toe,%, 
its claw 74; middle toe 17%, its claw 7%. 
In form, proportion, and size, this Magpie is precisely similar to 
the common species. Its bill has the sides less convex; the bare 
space under the eye is of much greater extent, and the feathers of the 
tail are much narrower. The colours are similar, and distributed in 
the same manner; but the bill of the present species is yellow, instead 
of black, and the black of the back and fore neck is tinged with brown. 
The two species are wonderfully closely allied; but on comparing my 
specimen with several others in the Museum of the Zoological Society 
of London, I found that they all precisely agreed with it. 
I have represented in the plate a twig of a species of Platanus dis- 
covered by the excellent naturalist after whom I have named the bird 
perched upon it. 
