66 BULLETIN OF THE LIVERPOOL MUSEUMS. 
N. alba. 
Hind toe short. 
Frontal plate goes behind the eye. 
Feathers of wing soft. 
Said to be flightless. 
Secondaries “longer than 
primaries” fide Rowley.* 
Not as heavy in body as Notornis 
mantelli. 
Sharp spur ‘on bend of wing 
(Pelzeln); “shoulders — spined” ; 
“furnished with a small crooked 
spine” (White). 
Colour entirely white. Some differ 
in having “bright blue between 
the shoulders and spotted on the 
back with the same” (Latham). 
“The cocks’ wings are beautifully 
mottled with blue” (Latham). 
The sides of the head round the 
eyes are reddish, very thinly 
sprinkled with white feathers. 
The scutellation of tarsus in Pel- 
zeln’s figure shows small and nume- 
rous scales. * 
Feathers on tibia stop short by 
some distance from joint. 
P. stanleyi. 
Hind toe longer than in the figure 
by Pelzeln and of NV. mantelli by 
Gould ; but agrees with that of J. 
alba in White’s Journal by Miss 
Stone, on the accuracy of which 
“the public may rely with the most 
perfect confidence,” and shorter in- 
deed, as the actual measurements 
just taken for me by Dr. Hellmayr 
show. 
Agrees. 
Agrees. 
Probably non-volant also, judging 
from the measurements of wing- 
bones given below. 
Primaries longer than secondaries. 
Pelzeln’s figure, however, shows 
primaries slightly longer than the 
secondaries. 
Agrees. 
Has sharp “ spine” directed back- 
ward in direction of quills ; but not 
at “bend” of wing, or directed for- 
ward or so curved, or as long as in 
White’s Plate. This “spine” is the 
claw of the bastard wing. 
Agrees in general white colour, and 
in being spotted with blue feathers 
on the back; has a blue sheen all 
over. 
The sides of the head with stiftish, 
rather sparse, feathers. 
Scutes longer and fewer (eleven in 
number). 
Agrees. 
In the present condition of our bird, it can now be seen that the top of 
the head as far back as the occiput was entirely black ; that the feathering on 
the regions above and in front of the eyes, on the throat and between the 
rami of the mandible, and on the sides of the head back to behind the ear- 
coverts, consisted of numerous short plumes (white plumes and black plumes 
the latter with a sheen of blue, intermixed, so as to produce a mottled appear- 
ance) quite covering these regions, but not so densely that it might not be 
possible in life to have seen the skin on the side of head through them. On 

*T regret that I omitted to draw Dr. Hellmayr’s attention to these points, 

