82 SIR W. L, BULLER ON A NEW PENGUIN. [Feb. 19, 
Length of attachment 
Length of of 2nd pectoral along 
carina sterni. the carina. 
Cathartes aura.......+5+- ‘ 82 72 
Serpentarius reptilivorus .... 115 40 
Gypohierax angolensis ...... 84 34 
Polyboroides typicus........ 56 24 
The structure of the syrinx is not clearly indicative of the affinities 
ot Polytoroides, but I propose to defer for the present the description 
of this organ in the Accipitres. 
The conclusion to which these facts lead is that Polyborcides is 
not even an aberrant type of the Falconide; its muscular anatomy 
lends no support to the view that it should be regarded as the 
representative of a special subfamily. 
7. On a Species of Crested Penguin (Eudyptes sclateri) from 
the Auckland Islands. By Sir Watrer Butter, 
K.C.M.G., F.R.S., C.M.Z.S. 
[Received February 19, 1889.] 
(Plate IX.) 
A recent study of the various species of Ludyptes inhabiting New 
Zealand and the neighbouring islands has satisfied me that three 
very distinct species of Crested Penguin have been hitherto confounded 
by ornithologists under the name of Hudyptes chrysocome. I have 
endeavoured to make this clear in the concluding part of my ‘ Birds 
of New Zealand’ (2nd ed. pp. 287-293) ; but I gladly avail myself 
. of the Secretary’s invitation to exhibit specimens this evening and to 
offer a few observations on the subject. 
The common New-Zealand bird, hitherto treated by most authors 
as being identical with Zudyptes chrysocome of the Falkland Islands, 
is undoubtedly a different species, and I have accordingly restored 
toit Mr. Gray’s name of pachyrhynchus. It is distinguishable from 
the latter by its thicker bill and by the character of its lateral crests, 
which are merely an extension of the golden superciliary streak, 
seldom reaching more than an inch beyond the crown, and never 
more than two inches. Hudyptes chrysocome, on the other hand, 
exhibits on each side of the head an abundant erest of drooping 
plumes, from three to five inches in length, besides presenting other 
minor differences. 
Ludyptes filholi, Hutton, from Campbell Island, does not appear 
to be separable from #. saltator, Stephens, and this again (as already 
pointed out by Messrs. Sclater and Salvin) is certainly referable to 
the true Hudyptes chrysocome, Forster, although Mr. Sharpe, in his 
Zoology of Kerguelen Island (Phil. Trans. R.S. vol. 168. p. 158), 
has kept the two latter forms distiuct. 
