19G PROCEEDINGS OF THE ACADEMY OF 



rior border broadly white. The bill of this species stands quite 

 alone among the penguins, saving Aptenodytes, in its length and 

 slenderness and in the length combined with narrowness of the 

 frontal antiae. Whilst the culmen measures 2.75, the distance from 

 the nasal feathers to the tip of the bill is only about 1.G0 ; the 

 nostrils are completely hidden, and not easy to discover in the 

 dried state. The bill is really longer than it looks, the rictus 

 measuring 5 inches ; the progression of the feathers on the bill is 

 a condition essentially similar to that of adelise: although the bills 

 of the two look so different, this is merely due to the length of 

 the terminal part in tseniata. If the terminal portion were cut off 

 an inch, the bill of tseniata would be essentially similar to that of 

 adelise. Sharing other features, especially the very long tail, adelise 

 and tseniata seem to be most closely related species ; and despite 

 the difference in the bill, I think that the skulls of the two will be 

 found of a single pattern. Some ornithologist will do good service 

 by noticing the skulls and seeing whether they agree, and if so, 

 how they compare with the three types of cranial structure. I am 

 induced to surmise that the resemblance will be found closest with 

 Apfenodytes. 



No. . . . Mus. Acad. Philada. No locality recorded. In this 

 specimen, apparently not quite mature, the fore half of the body 

 above is gray, in decided contrast with the blue-blackish of the 

 rest. The coronal crescent is evident. The bill appears to have 

 been clear yellow, with black ridge and tip. 



No. . . . Mus. Smiths. Inst. U. S. Expl. Exped., H. Eld, from 

 Macquarie's Island, where Mr. Peale sa} T s (1. c.) it was found 

 breeding in abundance, in Januaiy, with Crested Penguins. 



No. . . . Mus. Bost. Soc, no locality given, Coll. La Fresnaye 

 (Hyatt). 



Dr. Schlegel quotes the Falklands, vo3 r age of the Astrolabe and 

 Zelee ; Mr. Graj', also, Kerguelen's Island. 



PYGOSCELIS ADELI2E (H. A J.). 



Catarraetes adelice, Homb. and Jacq., Ann. Sc. Nat. 1841, 320. 

 Dasyrtomphus adelice, Home, and Jacq., Voy. P. S., Ois. 184G, pi. 33, f. 1. 

 Eudyptes adelim, Cassin, Om. U. S. Ex. Ex. 1859, 3.J2, 4o0, No. G8.3. 

 Spheniseus adelim, Schlegl, Mus. Pays.-B. Urin. 9me. livr. 18GG, 4. 

 Eudyptes (Dasyrhamphus) adelim, Gray, Handl. iii. 1871, 99. 

 Pygoscelis adelice, Hyatt, Proc. Bost. Soc. N. H. 1871, p. . 



