204: Mr. J. H. Gurney’s Notes on 
the second species of this genus, though extensive, is less so 
than that of P. apivorus ; its northern limit (excluding from 
consideration its alleged, but, I think, extremely doubtful 
occurrence in Japan, to which I have already referred) ex- 
tends from the Punjaub westward as far east as the Philippine 
Tslands*, and its southern from Ceylon to Java. 
P. ptilorhynchus seems to be quite as liable to individual 
variation as P. apivorus, the general character of the varia- 
tions being, for the most part, very similar in the two species. 
Those occurring in P. ptilorhynchus, however, seem to clude 
some slight modifications due to the effects of geographical 
distribution, which does not appear to be the case in P. 
apiworus. 
The differences in the barring on the tail between imma- 
ture and adult specimens is more marked and more constant 
in P. ptilorhynchus than in P. apivorus, and is referred to in 
the three principal descriptions which we possess of the 
changes and variations of plumage incident to this species, 
viz. those contained in the articles on P. ptilorhynchus mm Mr. 
Sharpe’s ‘Catalogue, in Mr. Hume’s ‘ Scrap-Book,’ and in 
Capt. Legge’s ‘ History of the Birds of Ceylon.’ 
Mr. Hume, at page 536 of his ‘ Scrap-Book,’ writes thus :— 
“The only marks by which I could certainly distinguish the 
older from the younger birds were :—first, that the older have 
two very broad well-marked dark-brown bands visible on the 
tail-feathers, and the space of paler brown enclosed between 
them is freckled and mottled with a lhghter colour, but not 
barred, while in younger birds the tail is invariably banded, 
more or less plainly, with numerous pale, narrow, wavy streaks, 
that this alteration is incorrect. My. Sharpe refers to Stephens’s con- 
tinuation of Shaw’s ‘Zoology,’ and also to Mr. Holdsworth’s pages in the 
P. Z. 8. for 1872, as cases in which the spelling of this word which he 
uses has been adopted ; but this is a mistake, as both these authorities 
spell the name “ péelorhynchus,” which, with the exception of the insertion 
of the letter h, is the spelling originally used by Temminck. 
* Of three specimens which I have seen from the Philippines, I only 
know the exact locality of one, a female from Butuan, in the island of 
Mindanao, recorded by the late Lord Tweeddale in the P. Z. 8. for 1877 
p. 821. 
