Obdbb IMPENNES.] 
[Eam. SPHENISCIDiE. 
PYGOSCELIS* TJINIATIJS. 
(ROCK-HOPPER.) 
Le Manchot Papou, Sonn. Voy. N. Guin. p. 181, pi. cxv. (1776). 
Aptenoclytes ])a] 9 ua, Forst. N. Comm. Getting, iii. p. 140, pi. 3 (1781). 
Papuan Penguin, Lath. Gen. Syn. iii. pt. 2, p. 565 (1785). 
Aptevodita papuce. Scop. Del. Faun, et Flor. Insubr. ii. p. 91. no. 71 (1786). 
Chrysocoma papua, Steph. Gen. Zool. xiii. p. 59 (1825). 
Pygoscelis fapua. Gray, List Anseres B. M. p. 153 (1844). 
Eudyptes papua. Gray, Gen. of Birds, iii. p. 641 (1849). 
Aptenodytes tceniata, Peale, U. S. Expl. Exp. p. 264 (1848). 
Pygoscelis wagleri, Sclater, Ibis, 1860, p. 390. 
Spheniscus papua, Schl. Mus. P.-B. Urinatores, p. 5 (1867). 
Pygosceles tceniata. Cones, Pr. Ac. Nat. Sci. Phil. 1872, p. 195. 
Pygoscelis toeniatus, Scl. & Salv. Proc. Zool. Soc. 1878, p. 653. 
Ad. supra nigricans vix cinereo lavatus : alls magis cinereis, margine alari conspicua et remigum apicibus fasciam 
terminalem latam formantibus albis : supracaudalibus rigidis, nigricantibus cinereo lavatis : rectricibus 
nigris, marginaliter brunnescentibus : fascia lata verticali alba ab utroque oculo per verticem ducta ; facie 
laterali et gutture cinerascentibus, gutturis pluinis albido variis : corpore reliquo subtus sericeo-albo : ala 
inferiore alba, remigibus extimis apicaliter cinereis plagam conspicuam exbibentibus : pectore subalari et 
plaga altera ad ortum alae posita einereis : rostro laete aurantiaeo, eulmine nigro : pedibus aurantiacis : 
iride Isete brunnea. 
Adult. Head and upper part of neck all round slaty black, excepting only a coronal band of white, extending 
from eye to eye, which is half an inch or more in width on the sides and narrows to a mere streak in the 
middle, with some scattered white feathers below it ; entire upper surface dull blue-black, more or less 
intermixed with brown ; on the side.s of the body, flanks, and upper tail-coverts the blue tinge deepens ; 
lower part of fore neck and entire under surface pure white ; flippers dull bluish black, largely margined 
on the inner edge with white, their under surfaee being also white with a conspicuous patch of blackish 
grey at the humeral flexure ; tail-feathers long, rigid, and dull bluish black with polished shafts. Bill 
reddish brown, changing to horn-colour at the tips ; legs reddish brown with black claws. Total length 39 
inches ; length of flipper 8-5 ; tail 6-35 j bill, along the ridge 3-35, along the edge of lower mandible 3-35 
tarsus 1 ; middle toe and claw 3’35. 
Young. Differs from the adult only in having the crown-mark narrower and washed with brown ; the line of 
demarcation on the throat less defined, being mixed with grey ; and the fore neck, as well as the wing-margin, 
more or less marked with brown. 
Obs. In none of the examples I have examined is the posterior edge of the coronal band regular or well-defined, 
but is broken, more or less, by small scattered spots which spread downwards towards the nape. 
In the Otago Museum there are two specimens (adult and young) obtained from Macquarie Island, 
* The genus Pygoscelis (established by Wagler in 1832) holds an intermediate position between Eudyptes and Aptenodytes,. 
and although not among the genera defined in my Introduction (pp. Ixi to Ixxxiv), I have found it necessary to employ it. 
