III PROCELLARIIDAE 65 
and bill, and near the eye; DJ. immutabilis, found from Laysan to 
Japan, is darker, with white head, neck, rump, base of tail, and 
lower parts; D. melanophrys, of the southern oceans, which has 
oceurred in California, and in summer in England as well as at the 
Faeroes,' is white, with a blackish band on each side of the eye, 
slaty back, brownish-black wings, and grey tail; D. bulleri, of the 
New Zealand seas, is greyish- brown, with white rump and lower 
surface, and ashy or whitish head; D. culminata and D. chloro- 
rhyncha, of the southern oceans, D. cauta of Tasmania, D). salvini 
of the New Zealand Seas, and D. layardi of those of the Cape, 
have similarly coloured plumage ; the last five being distinguished 
by some writers as Zhalassogeron, and having a strip of naked 
skin between the plates of the maxilla towards its base. LD. bulleri 
has red, D. chlororhyncha flesh-coloured, and the others yellow 
feet ; the amount of yellow on the bill varying with the species. 
Sub-fam. 2. Oceanitinae.—The genera recognised are Cymo- 
droma, Pealea, Pelagodroma, Garrodia, and Oceanites ; they are 
sooty- or slaty-black birds, of small size, having in some cases the 
rump, under parts, nuchal collar, forehead, supercilhary streaks, or 
margins to the feathers of the dorsal region white. Their range 
extends over different portions of the southern seas, whence 
Oceanites oceanicus, Wilson’s Petrel, has strayed to Labrador and 
Great Britain, and Pelagodroma marina to the latter and Massa- 
chusetts, while breeding in the Salvage Islands south of Madeira 
and the Cape Verds. The habits do not seem to differ appreciably 
from those of the Storm-Petrel. 
Sub-fam. 3. Procellariinae,—As here arranged, this com- 
prises three groups typified by the Fulmars, Shearwaters, and 
Storm-Petrels respectively. Of the first, Ossifraga gigantea, the 
Giant Petrel, or “ Nelly” of the southern seas, recorded also from 
Oregon, is dark brown, often with white on the head when 
immature, and sometimes almost entirely white.  fwlmarus 
glacialis of the North Atlantic, the Fulmar of St. Kilda, and the 
true Mollymauk of sailors, which is represented in the North 
Pacific by the barely separable  glupischa and F. rodgersi, 
is bluish-grey with dusky quills, white head, neck, and lower 
parts; the dark phase being uniform dusky grey. It is smaller 
1 Harvie-Brown, Zoologist, 1894, p. 337 : 
2 Eaton, Phil. Trans. clxviii. 1879, pp. 129-134; Ogilvie Grant, Jbis, 1896 
pp. 51-53. 
VOL. IX F 
