ook Proceedings of the Royal Physical Society. 
to me that these white-throated birds were but the 
young of the black-throated variety, though they must in 
this case have been only about six weeks old. The white 
throat—the only point of distinction in the plumage— 
showed in many cases a grey tint, small black feathers show- 
ing through among the white. In askin brought home, the 
lower part of the breast is still downy—the long down being 
not yet covered by the contour feathers. The bill is 
somewhat lower than in the black-throated birds. Further, 
it may be noted that the tenderness of the white- 
throated birds was remarked by all. No rookeries of this 
species were seen. In short, though the presence, so early 
in the season, of large flocks of young birds unmixed with 
older ones, is sufficiently remarkable, yet the weight of 
evidence seems to be in favour of this interpretation, and 
against the existence of Dasyrhamphus Herculis as an in- 
dependent species. This agrees with the observations of 
Mr Gray, Dr Coues, and Count Salvadori. 
Of the Pygoscelis Antarctica (Forst.), or Ringed Penguin, 
I only saw a single specimen, which I obtained to the south 
of lat. 64° S., and about 15 miles to the east of Seymore 
Island; but several others were seen by Mr Bruce of the 
“Baleena,’ on their first making the ice, in the vicinity of the 
South Shetlands. A sailor on board the “ Active” describes 
another ringed variety seen off Seymore Island. In addition 
to the black ring round the throat, it had a white patch on 
the crown of the head, and the bill and feet of an orange 
colour—thus apparently combining the characters of this 
species with those of the Pygoscelis taeniata. I am inclined 
to doubt whether Pygoscelis Antarctica should be allowed 
specific rank, and would rather favour its being regarded as 
a variety of Pygoscelis Adelie. 
The Pygoscelis taeniata (Peale) was seen in the water on 
several occasions, and was easily recognised by its white 
crown and loud “quangk,” much harsher and more pene- 
trating than that of any of the other forms met with. On 
- January 6th I landed on a small rookery belonging to this 
species, situated at the western extremity of Dundee Island 
—so called by our captain. It was placed about a stone’s 
