NEW ZEALAND GIANT PETREL. 
bill is very clear and pale, and according to Wilson, lemon-yellow. For this 
subspecies I propose the name — 
Macronectes giganteus solanderi, subsp. n. 
On Kerguelen Island breeds another uniform phase, which is easily 
separable by its longer and more massive bill, and while shorter in the wing 
than the Antarctic forms, has the tarsus and toes fully as long. Its general 
coloration is brown, while all the specimens I have examined have had more or 
less white faces. I name this form — 
Macronectes giganteus halli, subsp. n., 
after Mr. Robert Hall, who noted {Ihis, 1900, p. 27) : “ I found several young 
birds which had just lost their grey down and had assumed a shining black 
plumage, a phase on which I know of no observations. I do not see why this coat 
should be exchanged later on for what is a very poor one in comparison.” 
Lest it should be thought that, according to the Monograph of the Petrels, 
Kerguelen Island should be selected as the type-locality of M. giganteus, I would 
again note that Captain Cook did not call at Kerguelen Island until his third 
voyage, and the birds collected on that voyage do not appear to have 
come into the British Museum, whence Latham described his specimen, 
and moreover Latham’s description does not apply to the Kerguelen 
Island breeding bird. 
When we come to Australian-New Zealand seas we find other forms, and 
it would appear that the one met with in Australian waters is the one which, 
according to Captain Bollons (not Bolton, as given in the Monograph), has 
extensive rookeries on both Campbell and Antipodes Islands (c/. Waite Sub- 
antarctic Islands of New Zealand, Vol. I., p. 564, 1909). This form is uniformly 
coloured, and is darker than the Kerguelen form ; the wing is about the same 
length, but the bill is noticeably less, and the tarsus is also slightly smaller. 
My own specimens are from the Snares and the bird figured is an albino of this 
form. I would here explain that it would appear that the white birds occurring 
very rarely in the Subantarctic region should be classed as albinos, whereas 
the white forms to be discussed later, as characteristic of the Antarctic region, 
should not be so determined. 
In support of this contention I find that the New Zealand dark birds have 
dark legs, while the New Zealand albinos have yellowish legs, not blue- grey like 
the Antarctic white birds have. The white bird from the Snares in the British 
Museum which upset Wilson’s conclusions, is unquestionably an albino, and should 
not be compared with dark birds as a specimen of the white Antarctic birds. 
When the young leave their nests they are dark coloured and smaller in all 
their measurements than adults, and in a bird from Wellington, New Zealand, 
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