APPENDIX 



(A) Plumage and Soft Parts. 



The following description of the plumage and 

 soft parts of Pygoscelis Adelias, which is perfectly 

 correct, is taken from the zoological report of the 

 Discovery Expedition. 



Soft Parts. 



" Bill, when first hatched, blackish. A week 

 old, black terminally, deep red at the gape and 

 along the cutting edges. Immature of the first 

 year, blackish. Adult, brick-red, the upper bill 

 black terminally, and the mandible black along the 

 cutting edge. 



" Iris, brown ; varying between reddish brown 

 and greenish brown. 



" Eyelids, black throughout the first year ; pure 

 white in the adult at fourteen months and on- 

 wards. 



" Feet, flesh red ; dusky when first hatched, 

 brightening in the first week or two. Immature 



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