54 A MANUAL OF THE BIRDS OF AUSTRALIA. 
types. The colour could be washed off, by a little friction. Dimensions 104— 
112 mm. by 66-69. 
Breeding-season.—October to November. 
Distribution and forms—RKound the Sub-antarctic Circle. Four good races 
have been separated: D. c. cauta (Gould), from East Australian seas, breeding in 
Bass Straits; D. c. salvini (Rothschild) from New Zealand, breeding at Bounty 
Island, with a smaller bill, darker coloured and with shorter legs and feet ; D. c. 
layardi (Salvin) from Cape Seas with still smaller and narrower bill, shorter tarsus 
and toes and whiter head and neck ; and D. c. platei (Reichenow), from west coast 
of South America, with the culminicorn almost touching the feathers of the head, 
and of this last named Salvadori’s 7’. desolationis is a synonym, as the bill coloration 
with pale culminicorn and pale basal portion of lower mandible recalls that of “ 7’. 
culminata ’’ as noted by Salvadori. 
Genus DIOMEDEA. 
Diomedea Linné, Syst. Nat., 10th ed., p. 132, Jan. Ist, 1758. Type (by subsequent designa- 
tion, Gray, p. 78, 1840): Diomedea exulans Linné. 
Albatrus Brisson, Ornith., Vol. I., p. 54, Vol. VI., p. 126, 1760. Type (by monotypy) : 
D. exulans Linné. 
Albatrossa Briinnich, Zool. Fund., p. 80, 1771. No species added. Type (by monotypy) : 
D. exulans Linné. 
Albatros Lesson, Manuel d’Orn., Vol. II., p. 389, June 28th, 1828. Substitute name for 
Diomedea L. 
Rhothonia Murphy, Bull. Amer. Mus. Nat. Hist., Vol. XXXVII., p. 861, Dec. 10th, 1917. 
Type (by monotypy): D. sanfordi Murphy. 
Largest Albatrosses with long bills, very long wings, very numerous secondaries, 
long tails and strong legs and feet. 
The bill is very long and hooked of the usual Albatross character, with the 
nostrils of two forms as shown by Murphy (loc. cit.). At the base of the lower 
mandible the feathers run forward, quite unlike those in Thalassarche and recalling 
that of Phebetria. 
The wing is notable for its extreme length and extraordinary number of 
secondaries. The tail is rounded, and though long, is comparatively short, being 
one-third the length of the wing. 
The legs are very stout, the tarsus about three-fourths the length of the culmen 
and much less than the toes, the outer of which is longest, the anterior toes being 
fully webbed and the hind-toe missing altogether. 
Coloration white in the adult, but generally brown in the immature. 
42. Diomedea exulans. WANDERING ALBATROSS. 
[Diomedea exulans Linné, Syst. Nat., 10th ed., p. 132, Jan. 1st, 1758: Cape of Good Hope. 
Extra-limital.] 
Gould, Vol. VIL, pl. 38 (pt. x1v.), March Ist, 1844. Mathews, Vol. II., pt. 3, pl. 95, Sept. 
20th, 1912. 
Diomedea exulans rothschildi Mathews, Birds Austr., Vol. II., pt. 3, p. 246, Sept. 20th, 1912: 
off New South Wales coast. 
Diomedea exulans westralis Mathews, Bull. B.O.C., Vol. XXXIX., p. 29, Nov. 30th, 1918: 
Albany, West Australia. 
DisTRIBUTION.—Australian Seas. 
Adult male—General colour above white with wavy cross-bars of ash-brown, 
more narrowly and faintly on the hind-neck, broader and more pronounced on the 
back and upper tail-coverts ; the scapulars white, vermiculated and broadly tipped 
with brown, more especially on the outer webs; short feathers of the humerals 
