THE BIRDS OF AUSTRALIA. 
I have been unable to see superficial characters which would justify the 
separation of leucoryphus and leucogaster, though it is quite possible that 
anatomical investigation would confirm Blanford’s suggestion. 
When leucogaster is compared with Haliaeetus, however, the nostril in 
the latter is seen to be perpendicularly elongate and partly covered by an 
operculum ; the wing has the first primary only equal to the seventh, the 
second less than the third, fourth and fifth, which are subequal, though 
longer than the sixth : really the wings are more different than would be 
concluded from these details. The legs and feet are very different, the 
tarsus being covered with feathers for about three-quarters of its length, 
and the feet being large and strong : the tarsus is comparatively shorter and 
the middle toe longer, the latter exceeding the former in length. 
It seems doubtful to me whether Haliaeetus is the nearest relative to 
Cuncuma, but here again it is impossible to do much without a good knowledge 
of the osteology ; superficial features seem of little value, and the only point 
is that such differences as may be easily seen denote greater distinction than 
might at first be imagined. 
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