DIOMEDEA. 51 
Wing 26.50-29.00 inches; total length, 44.00-55.00, extent, 125.00-130.00. 
Adult: White, the remiges blackish. Young: Dusky, with fore part of 
the head whitish (older individuals with more white, according to age). 
Egg 4.95 < 3.15, white, minutely sprinkled over large end with brownish 
(adventitious stain in pores of shell?). Hab. Southern seas in general, 
north, casually or very irregularly, to Florida (Tampa Bay and mouth 
of St. John’s River) and coast of Washington. 
—.D.exulans Linn. Wandering Albatross. 
a, Culmen slightly concave, the bill more compressed ; feathers at base of maxilla 
extending in a nearly straight obliquely transverse line far back of the nasal 
tube, those at the base of the lower mandible also extending nearly straight 
across. 
. Lateral division of the bill narrower at base than in the middle. (Sub- 
genus Phebastria Rzicu.’) 
c, Length 28.50-36.00, wing 18.50-20.50, culmen 4.00-4.25, depth of bill at 
base 1.45-1.60, tarsus 3.50-3.70, middle toe 4.05-4.40. Adult: Uni- 
form dusky, more grayish below, the tail-coverts, base of tail, and 
anterior portion of the head white ; bill dusky purplish brown; feet 
black. Young: Similar to adult, but upper tail-coverts dusky, and 
white of head more restricted (sometimes almost obsolete). Hab. 
North Pacific; on the American side, from coast of California 
(very abundant) to Alaska. 
81. D. nigripes Avup. Black-footed Albatross. 
¢. Length 33.00-37.00, wing 22.00-23.00, culmen 5.50-5.60, depth of bill 
at base 1.95-2.05, tarsus 3.80-4.00, middle toe 4.65-4.90. Adult: 
White, becoming straw-yellow on head and neck; tail-feathers, 
remiges, etc, slaty brown, the primaries with yellow shafts. Young: 
Uniform sooty or dusky, the head and neck nearly black; shafts of 
primaries straw-yellow; bill and feet pale brownish. Hab. North 
Pacific; on the American side occurring from California to Alaska, 
but chiefly northward. 
82. D, albatrus PaLu. Short-tailed Albatross. 
b. Lateral division of bill broader at base than in middle. (Subgenus Thalas- 
sarche Retcu.*) 
c. Lower parts white; upper parts plain dusky. 
d', Under wing-coverts chiefly, or in large part, white. Adult (and 
young ?): Head, neck, rump, upper tail-coverts, and entire 
lower parts white, the sides of the head with a more or less 
distinct grayish stripe, darkest near the eye; back and scapu- 
lars brownish slate, more ashy anteriorly, the wings plain 
dusky; color of bill varying from pale yellowish in adult to 
dark horn-color in young; wing 19.50-20.50, tail 8.00-8.50, 
1 Diomedea exulans Linn., 8. N. ed. 10, i. 1758, 132, 
2 Pheebastria Rutcu., Syst. Av. 1852, p. v. Type, Diomedea brachyura Tenm., = D, albatrus Pati. 
8 Thalassarche Rutcu., Syst. Av. 1852, p. v. Type, Diomedea melanophrys Borg. 
