23 [ Vol. xxxix. 
upper surface in being dark slate-grey, instead of black ; 
and on the under surface in having the breast and sides of 
the body dark brown, not black, and much more broadly 
banded with white. “ Iris brown ; feet orange ; bill black ” 
(P. O. Simons). Total length 250 mm., culmen from edge 
of cere 11, wing 199, tail 97, tarsus 32. 
Habitat. Bolivia. 
The type, which is in the British Museum, was collected. 
by P. O. Simons at Charuplaya, Bolivia, at an altitude of 
1300 metres, 1 June, 1910. 
The black on the crown of the head and the less amount 
of white on the shoulder of the wings distinguishes this 
bird from F. r. petoensis. 
Mr. Gregory M. Maruews sent the following descriptions 
of new forms * :— 
Page 41: 
Diomedea exulans westralis, subsp. n. | 
Differs from D. ¢. rothschildi in having a white tail (except 
for a few spots of brown on some feathers) and in having 
a smaller bill and tarsus. 
D. e. rothschildi: Bill 147 mm., tarsus 108. 
D. e. westralis : ST ReeD ag ja 124). 
“ Type. From Western Australia, off Albany. Caught 
14 May, 1910. 
Bill pale flesh ; eyes hazel, orbits blue; legs greenish grey ; 
webs pinkish grey. 
Page 214: 
Acanthiza pusilla peroni, subsp. n. 
Differs from A. p. apicalis Gould in being lighter, almost 
grey above, and in having the flanks much lighter-coloured 
aud in not having a white spot on the inner webs of the 
tail-feathers. Wing 50 mm. 
* The page-numbers refer to Mathews’s ‘ List of Birds of Australia, 
1918, 
