Oedee APTERYGES.] 
[Fam. APTEBYGID^. 
APTEEYX AUSTEALIS. 
(SOUTH-ISLAND KIWI.) 
Apteryx australis, Shaw and Nodder, Nat. Misc. xxiv. pis. 1057, 1058 (181o). 
Bromiceius novae zealandioe. Less. Man. d’Orn. ii. p. 210 (1828). 
Apteryx mantelli, Bartlett, P. Z. S. 1850, p. 275. 
Apteryx fusca, Potts, Trans. N.-Z. Inst. vol. v. p. 196 (1873). 
Native names. — Kiwi and Tokoeka. 
Ad. similis A. bulleri, sed major, pallidior, et magis grisescens; tergo tantum vixcastaneo tincto : scapis plumarum 
baud conspicuis, itaque ptilosi molliore distinguendus. 
Adult. Differs from Apteryx bulleri in its larger size and in the lighter colour of its plumage, the feathers being 
of a sandy or greyish brown, with darker margins, those of the upper parts only slightly tinged near the 
tips with rufous. The plumage of the nape and back of the neck is less hairy ; and the feathers of the 
back and hind parts are destitute of the lengthened and stiffened points which characterize the othei 
species. 
Male. Total length, following the curvature of the back, 22 inches ; bill, along the ridge 3'75, along the edge 
of lower mandible 4‘1 ; rudimentary wing, to end of hook, 1; tarsus 2'25 ; middle toe and claw 3'5 ; 
hallux ’75. 
Female. Total length (measured as above) 27 inches ; bill, along the ridge 5‘5, along the edge of lower man- 
dible 5-8; rudimentary wing, to end of hook, 1-5; tarsus 3 ; middle toe and claw 3-75 j hallux '8. 
Obs. As a rule the South-Island birds are larger than those from the North Island ; but occasionally examples 
of Apteryx bulleri are met with fully equal in size to the largest specimens of Apteryx australis ; and this 
is therefore of little or no value as a specific character. It may be observed that in this species the long 
facial hairs or feelers are, generally speaking, far less abundant than in the North-Island Apteryx. 
Young. Has the head and hind neck dark grey, and the rest of the plumage greyish brown, lighter on the under- 
parts, each feather with a narrow streak of fulvous along the shaft; on the feathers of the upper parts this 
streak is darker towards the tip, and the terminal filaments are black, whereas on the underparts of the body 
both the tips and filaments are light brown or fulvous ; the bill, which measures two inches in length, is 
light horn-colour ; the legs and feet are light brown, the metatarsi being covered anteriorly with thin scales, 
scarcely definable to the eye. In this young eondition the quill-tubes are very minute, and the plumage of 
the hody is extremely soft to the touch- 
In the Rowley collection at Chichester House, Brighton, there is a specimen of the chick, apparently 
younger than that described above, and differing from it in the lighter tone of its plumage, especially on the 
upper parts. 
The nestling has a wing-claw of the same character as in the adult, although scarcely more than a 
decimal of an inch in length. 
Partial albino. In the Canterbury Museum there is a partial albino, in which the crown and sides of the head, 
the throat and the whole of the fore neck, and the front of the thighs are yellowish white. 
