64 PROCELLARIIFORMES CHAP. 
his wings, his head goes back, and his back goes in; down drop 
two enormous webbed feet straddled out to their full extent, 
and with a hoarse croak, between the cry of a Raven and that of 
a sheep, he falls ‘souse’ into the water. Here he is at home 
again, breasting the waves like a cork. Presently he stretches 
out his neck, and with great exertion of his wings runs along 
the top of the water for seventy or eighty yards, until, at last, 
Fic. 18.—Wandering Albatros. Diomedea exulans. xi. 
having got sufficient impetus, he tucks up his legs, and is 
once more fairly launched in the air.”’ D. regia, of the New 
Zealand seas, has no undulations on the back; the similar DP. 
chionoptera, of the Southern Indian Ocean, has nearly white wing- 
coverts ; and D. albatrus, of the North Pacific, has buff crown 
and nape. Of the smaller forms, or Mollymauks (p. 65), J. 
irrorata, of West Peru, is sooty-brown with plentiful white 
mottlings and white head; D. nigripes, of the North Pacific, is 
the same colour, but shews white only at the base of the tail 
1 bis, 1865, pp. 281, 282. 
