Genus — PENECENANTHE gen. nov. 
Type Eopsaltria leucura Gould. 
The Mangrove Robin has the tail of a similar style to that of the Wheatear, 
and as recently Hartert and Ogilvie-Grant have decided that a series of so-called 
Pcecilodryas from New Guinea should be called Wheatears, I suggest this is 
another variant from the same stock. It has been classed as Eopsaltria and 
Pcecilodryas , and more recently I placed it with Eopsaltria georgiana in 
Quoyornis. I find, however, that while the latter is more closely related to 
the Eopsaltria form, the present species recalls the Pachycephaline species. 
I, therefore, separate it as above to keep the matter well in view, so that its 
nature can be ascertained. 
The bill is long and thin, somewhat keeled, the tip decurved and pro- 
jecting ; the rictal bristles not very prominent. 
The wing is long with the first primary short but more than half the 
length of the second which is shorter than the seventh ; the third, fourth, 
fifth and sixth are longest and subequal, the third usually a little shorter 
but longer than the seventh. 
The tail is long and square, while the legs are fairly strong. The colora- 
tion is grey above and white below with a grey breast-band and white 
throat-patch. 
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