PROCELLARINiE. PROCELLARIA. 
335 
extent^ so that its sides behind overlap and obliterate the sutural space 
behind the nostrils ; feet black ; fore part of head^ cheeks and throat 
light dusky-grey, the capistral feathers nearly white, as is a small patch 
at the posterior angle of the eye ; upper part of head, hind neck, and 
all the upper parts, including the wings and tail, sooty-brown tinged 
with grey, as are the lower surface of the wings and the axillaries ; 
lower parts dull grey, deeper on the fore parts and sides of the neck. 
Length, 86 ; wings, 21 ; bill, 5 ; tail, 3. 
Pacific Ocean, off California. 
Black-footed Albatross, Diomedea nigidpes, Aud, Orn. Blog. v. v. p. 327. 
459. 2. Diomedea fusca, Aud. Dusky Albatross, 
Plate CCCCVII. Adult. 
Bill black, much compressed, its ridge carinate, mth its basal out- 
line running up on the forehead into a very acute angle, lower man- 
dible with a groove on each side in its whole length, as far as the 
unguis ; feet yellow ; head and upper part of the neck greyish-black, 
tinged with brown, the rest of the neck, all the lower parts, the back 
and rump light brownish-grey, scapulars darker, wings brownish-black, 
primary quills and tail-feathers greyish-black with white shafts ; eye- 
lids narrowly margined with white feathers, their anterior part ex- 
cepted. 
Adult, length, 34 ; wing, 21 ; tail, 11 ; bill, 4i|, 
Off the Columbia River. 
Dusky Albatross, Diomedea fusca, Aud. Orn. Biog. v. v. p. 116. 
GENUS III. PROCELLARIA, Linn. FULMAR. 
Bill of about the length of the head, or somewhat shorter, 
robust, straight, moderately compressed, with the tip de- 
curved ; upper mandible with the nostrils dorsal, separated 
by a thin septum, covered by an elevated horny case, and 
opening directly forwards, the ridge nearly straight or con- 
cave in its outline, laterally sloping or convex, separated by 
a groove from the sides, which are erect and convex, the 
edges sharp, inflected, and in their outline slightly recurved 
from the base to the unguis, which is strong, decurved, and 
acute ; lower mandible with the angle long, narrow, acflte, 
the sides erect, with a groove in their whole length, the 
edges sharp and direct, the very short dorsal line ascending 
and slightly concave, the edges decurved at the end. Head 
