Genus— HARRIWHITEA. 
Haeriwhitea Mathews, Austral Avian Record, Vol. I., 
p. 109, 1912 . . . . . . . . . . . . Type H. aTherti. 
At the place cited I recorded : “ Differs from Menura in the different form of 
the tail, lacking the long curved outer rectrix.” 
That the two species of Lyre-Birds should be associated in the same 
genus was not unexpected, as they constitute an anomalous pair, but the 
differences are valid and certainly should he recognised by generic separation. 
Their tail structure indicates peculiar evolution, and consequently the differences 
must be emphasised and not minimised. 
Whatever the correct location of the group may be, it cannot be denied 
that it is well defined and distinctive, and consequently the differences inter 
se must be of much greater value than similar differences observed in an 
ill-defined or plastic series. 
It is unfortunate that the present form is practically extinct, so that 
anatomical investigation cannot be undertaken, as it might be that such would 
reveal peculiarities which might assist us appreciably in the interpretation of 
this order. 
408 
