Genus— PETRO PHASSA. 
Petrophassa Gould, P.Z.S., p. 173 (1840) P. albipennis. 
This genus agrees with Histriophaps in the number of rectrices, which are 
fourteen, but the tail is much longer and distinctly rounded, being almost 
graduated. The wings are much shorter and very round, the distance from the 
end of the primaries to the tip of the secondaries being about 20 mm. The edges 
of the bod3r-feathers are peculiarly soft and The space round the eyes 
and most of the lores bare. The metallic colour on the wings is hidden, 
being generally restricted to one of the long coverts of one of the innermost 
secondaries, but sometimes indicated on the secondary in front of that covert. 
Distribution. Austraha. (Only two species.) 
165 
