Genus — P SEUDOGERYGQNE. 
Pseudogerygone Sharpe, Notes Leyden Mus., 
\ ol. I., p. 29, Jan. 1879. Type (by original 
designation ) ... ... ... ... ... Gerygone 'per sonata (Gonld). 
When Sharpe was preparing the Catalogue of the Birds in the British Museum 
he went to Leyden to examine the peculiar birds contained in the famous 
Museum at that place. As one result he contributed a series of notes to the 
Journal established by the Museum at that time, and one of them dealt with the 
group here treated. Observing the heterogeneity of the series he felt compelled 
to subdivide the species and therefore separated as generically different those 
which showed the second primary equal to or less than the secondaries, the species 
restricted to Gerygone having the second primary exceeding the secondaries 
in length. A more artificial division could scarcely have been devised, but 
fortunately Sharpe distinctly named as type of his new genus Pseudogerygone 
the species G. personata Gould. That species differs remarkably in coloration 
and style, and the genus name Pseudogerygone can be used for it and its allies. 
It seems to be a further colour development from Gerygone in the emphasis of 
the yellow and the innovation of black on the head and throat. The southern 
(North Queensland) specimens show this only as a shadow, while the most 
northern (Arfak, New Guinea) have the black coloration most pronounced. 
The bill is long, of medium length for the series. In the wing the first 
primary is about half the length of the second, which is exceeded by the 
secondaries; the third, fourth and fifth subequal and longest; the fourth a 
little exceeding the others ; the sixth and seventh are little less and exceed 
the second. The tail is long and square at the tip. The legs fairly strong. 
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