MR. F. LENEY ON ADDITIONS TO TIIE NORWICH CASTLE-MUSEUM. 723 
done well in spite of being only partially fed on furred food. 
Before that, it had been in the Zoological Gardens at Hamburg, 
to which it was presented by Capt. Dethlefsen in 1887, being then 
supposed to be a young T. pelagicus, the allied species with white 
shoulders, which it resembles in the immature state. 
“ My son who saw this Eagle at the Zoological Gardens before I did, 
described it three months after its arrival in London as having both 
the feet and beak <piite white. When 1 was able to examine it 
(Juno 1891,) its beak was a yellowish horn colour with darker tip, 
cere and lower mandible very pale yellow, toes the same colour, and 
eyes dark brown. The plumage was then black all over, except 
that the under surface of the primaries was slightly ‘flecked’ with 
white. In May, 1895, the tail was no longer entirely black. In 
October, 1896, several of the tail feathers were partly white as 
well as the upper and under tail coverts. Eventually it assumed 
a pure white tail, and at the time of its death closely resembled 
the figure which illustrates I>r. Heinr. Bolau’s article in ‘ I >er 
Zoologische Garten,’ (1894). Mr. Sclater has remarked on the small 
size of this example when it arrived in England (l’.Z.S., 1893, 
p. 613), and as he anticipated, it proved to be a male when 
subsequently skinned and dissected by Mr. 1. E. Gunn, at whose 
house the following measurements were taken expanse, 6 feet 
10 inches; length from tip of beak, 3 feet 2£ inches. The 
opportunity was a favourable one for preserving the sternum 
which has been compared with the sterna of our two British Eagles 
Aquila chrysaetus and tlalidetus alhicilla. It proved to be larger 
than either of them, though very like the breast-bone of //. allnnlfa 
except that it was a little deeper, and the keel somewhat more 
rounded, without posterior emarginations : ribs seven in number. 
Length of windpipe, 7| inches. One noticeable feature about this 
Eagle is the great length of the feathers on the belly, some of 
them measuring as much as 5 2 inches, being considerably more 
than in the corresponding feathers of T. pelagian. 
“ With regard to its scientific name this Eagle ought apparently 
to stand as Thalamivtus niger (Ileudc), for in 1877, 1\ M. Heude 
of Zikawei, Japan, described in ‘ Le Naturaliste, p. 95, an Eagle 
of a black colour all over except the tail, which he had alive, under 
the name of UaUdetu # niger, which was no doubt identical with the 
