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BEACK-BELEIED DIPPER. 
(CincLus MELANOGASTER.) 
Admitted to the B.O.U List, 
as of Specific rank. 
Admitted by Newton, 
as a Welanic form of C. Aquaticus. 
Admutted by Seebohm, 
as a Variety of C. Aquaticus. 
The B.O.U. List adverts to the fact that some authorities 
do not admit the British occurrences to have been ¢ruve 
examples of ‘Melanogaster’; but the authors seem further 
to deny that even ¢rue ‘ Melanogaster’ is a true spectes. 
Mr. Seebohm considers that the British occurrences 
of ‘Melanogaster’ are tmmature forms of ‘ Aquaticus.’ 
In the ‘addenda’ to his first volume however he speaks of 
the occurrence of the frue variety ‘ Melanogaster, a 
specimen of which he had “just received from Mr. Eagle 
Clark an undoubted example of C. Aquaticus var. Mela- 
nogaster, shot at Spurn point in Yorkshire, where it had 
probably arrived on migration from Scandinavia, as it 
frequently occurs in Heligoland.” 
THE BLUE ROCK THRUSH. 
( MonTICcOLA CYANUS.) 
Rejected from the B.O.U. List. 
Rejected by Newton. 
Rejected by Sechohm. 
The bird, which is now in the Museum of the Royal 
Dublin Society, was shot in Westmeath on Nov. 17, 
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