82 SIR W. L. BDLLER ON A NEW PENGUIN. [Feb. 19, 



Length of attaclinient 

 Length of of '2iid pectoral along 

 carina sterni. the carina. 



Cathartes aura 82 72 



Serpentarius reptilivorus . . . . 11.5 40 



Gypohierax angolensis 84 34 



Polyboroides typicus 56 24 



The structure of the syrmx is not cle.irly indicative of the affinities 

 of Polyboroides, 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 Polyboroides is 

 rot even an aberrant type of the Falconidse ; 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 Walter Buller, 

 K.C.M.G., F.R.S., C.M.Z.S." 



[Eeceived February 19, 1889.] 

 (Plate IX.) 



A recent study of the various species of Eudyptes 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 Eudyptes 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 Eudyptes ch-ysocome of the Falkland Islands, 

 is undoubtedly a different species, and I have accordingly restored 

 to it Mr. Gray's name of pachyr/iynchus. 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. Eudyptes chrysocome, on the other hand, 

 exhibits on each side of the head an abundant crest of drooping 

 jilumes, from three to five inches in length, besides presenting other 

 minor differences. 



Eudyptes filholi, Htitton, from Campbell Island, does not appear 

 to be separable from E. sal tutor, Stephens, and this again (as already 

 pointed out by Messrs. Sclater and Salvin) is certainly referable to 

 the trvie Eudyptes 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 distinct. 



