Vol. xxxix. | 88 
of dusky bars; tail also dusky with a darker blackish 
terminal band and four narrow transverse bars; below 
white throughout with a few black feathers on the sides of 
the breast, flanks, and thighs; axillaries and tips of the 
under tail-coverts also black; under wing-coverts mostly 
dusky, but white along the edge of the wing ; wing and 
tail-feathers whitish below with ill-defined dusky bars and ~ 
blackish tips. 
Third, fourth, and fifth primaries the longest, the fourth 
slightly exceeding the other two; wing short, the distance 
between the longest secondaries and the longest primary 
about 50 mm., while the tarsus is about 75 mm.; tarsus 
very thickly clothed with feathers well on to the bases of 
the toes; hind claw very strong and powerful, measuring 
with dividers from base to tip 35 mm., while the toe itself 
measures about 25 mm.; the middle toe is only 23 mm. 
“Bill black, cere yellow, iris pale yellowish and dark 
brown, feet yellow, claws black.” 
Total length (dried skin) about 600 mm.; wing 320; 
tail 230; tarsus 75; bill without cere (measured with 
calipers) 27, with cere 36. 
Type, a male, obtained by Mr. G. lL. Bates at Bitye, 
Ja river, alt. 2000 ft., 16 Dec., 1913, in southern Cameroon, 
while there is another example in the Museum, also a male, 
collected by Mr. Bates at Efulen on 10 April, 1902. 
This last example was described by Sharpe (Bull. B. O. C. 
xii. 1902, p. 79, and ‘Ibis,’ 1904, p. 102) as the adult of his 
Lophotriorchis lucani, of which up to that time he had only 
examined young examples; but it is obvious that the 
Cameroon bird has nothing to do with LZ. lucani, as the 
shape of the wing, the absence of a crest, and the shape 
and dimensions of the legs and feet show at once. 
Recently Mr. Finch Davies (‘ Ibis,’ 1919, p. 167, pl. iii.) 
has disentangled the history of L. lucani, which he believes 
to be synonymous with Hieraaétus ayresi, and has figured the 
adult bird. This is entirely distinct from our Cameroon 
Hawk-EKagle. 
I do not think there can be any doubt that the Cameroon 
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