BROWN PETREL. 31 
Adult male—Entire plumage, both above and below, sooty-black, with no 
white on the head ; bill yellow, culmen and tip black, iris hazel, feet black. Total 
length 545 mm. ; culmen 42, wing 348, tail 110, tarsus 54. 
Adult female.—Similar to the adult male. Total length 530 mm.; culmen 40, 
wing 337, tail 101, tarsus 52. 
Nestling —Covered with dark grey down. 
Nest.—A few leaves placed at the end of a burrow. 
Egg—Clutch, one ; pure white ; axis 72 mm., diameter 51. 
Breeding-season.—November and December. 
Distribution and forms—New Zealand Seas, breeding on the mainland and 
islands. No subspecies differentiated, but Loomis has recently (Proc. Calif. Acad. 
Sci., Vol. IL., pt. u., p. 108, April 22nd, 1916) recorded the species killed at sea 
near the Galapagos Islands. 
Genus ADAMASTOR. 
Adamastor Bonaparte, Comptes Rendus Acad. Sci. Paris, Vol. XLIII., p. 595, Sept. 1856. 
Type (by original designation): Pr. hesitata Forster = Procellaria cinerea Gmelin. 
Priofinus Auct., not of Hombron and Jacquinot, 1844. 
Large Puffinine birds agreeing with Procellaria with bill features, but with 
shorter wings, comparatively longer tail and shorter legs. The different coloration 
of the feet suggest a more close alliance with Puffinus (sensu latissimo) and Ardenna 
(s. str.). The culmen is less than the tarsus which is half the length of the rounded 
tail, which is one-third the length of the wing ; in the preceding genus (Procellaria) 
the tarsus is more than half the length of the tail, which is less than one-third the 
wing-length. 
Coloration brown-grey above, white below. 
21. Adamastor cinereuskx BROWN PETREL. 
Gould, Vol. VII., pl. 47 (pt. xxxv.), Dec. Ist, 1848. Mathews, Vol. II., pt. 1, pl. 81, May 
30th, 1912. 
Procellaria cinerea Gmelin, Syst. Nat., Vol. I., pt. 1, p. 563, April 20th, 1789: Antarctic 
Circle = Seas south of New Zealand. 
Procellaria gelida Gmelin, 2b., p. 564: “‘ inter 35° and 50° South.” 
Procellaria melanura Bonnaterre, Tabl. Encycl. Méth. Ornith., Vol. I., p. 79, 
1791 All these 
Procellaria hesitata Forster, Dese. Anim., ed. Licht., p. 208, (Jan. 1st) 1844 based on 
Not of Kuhl, Beitr. Vergl. Zool. Anat., p. 142, (pref. April 9th) 1820 same source 
Adamastor typus Bonaparte, Consp. Gen. Av., Vol. II., p. 187, Oct. Ist, 1857 | as Gmelin’s 
Procellaria adamastor Schlegel, Mus. Pays-Bas, Vol. VI., Procell., p. 23, July species. 
1863 
Procellaria pallipes Mathews, Birds Austr., Vol. II., pt. 2, p. 123, July 31st, 1912: New 
Zealand. Ex Solander MS. 
Priofinus cinereus dydimus Mathews, Austral Ay. Rec., Vol. III., pt. 3, p. 54, April 7th, 1916: 
New Zealand. 
DistrisutTion.—Australia. Gould says that he got specimens between Hobart and Sydney. 
But none preserved now. 
Adult male-—General colour above ash-grey, including the feathers of the back, 
scapulars, and upper tail-coverts ; the long scapulars and wing-coverts a little darker 
than the back, and show the shaft-streaks ; bastard-wing and primary-coverts 
ash-brown ; primary-quills, hoary-grey, paler on the inner webs, outer web of the 
first primary blackish ; shafts white towards the base; secondaries hoary-grey, 
more or less white on the basal portion ; tail for the most part brown with hoary- 
grey on the outer webs of the feathers and becoming whitish towards the base ; 
head and sides of the face darker than the back, and inclining to black or slate- 
