THE ADELIE PENGUIN. 



37 



No. 60, <J , imm. skin. Jan. 19, 1904. Cape Royds shedding the down. 



No. 61, imm. skin. Feb. 12, 1904. McMurdo Sound See Birds, PI. IX., fig. 4. 



No. 62, ? , ad. skin. Nov. 9, 1902. Cape Crozier Isabelline var. See Birds, PI. IX., fig. 6. 



No. 63, 9 , ad. skin. Jan. 22, 1902. do. do. 



No. 64, (J, imm. skin. Jan. 19, 1904. Cape Royds shedding the down. 



No. 65, <J, imm. skin. Jan. 19, 1904. Cape Royds shedding the down. 



Nos. 170-181, adult skeletons. McMurdo Sound. 



Nos. 182-185, juv. in formaline. Jan. 9, 1902. Cape Adare. 



Spirit Specimens. 



No. 235, juv. Jan 9, 1902. Cape Adare. 

 No. 236, juv. Jan. 9, 1902. do. 

 No. 237, <J juv. Jan. 12, 1904. Cape Royds. 

 No. 238, 9 , juv. Jan. 12, 1904. do. 

 No. 239, 9 , juv. Jan. 12, 1904. do. 

 No. 240, juv. Jan. 11, 1904. do. 



Also a collection of eggs taken at Cape Adare, Jan. 9th, 1902 ; at Cape Royds, Jan., 1904 ; and at 

 Cape Crozier, Jan., 1902, and Nov., 1902. 



The colouring of the soft parts is as follows : 



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 14 months, and onwards. 

 Feet, flesh red ; dusky when first hatched, brightening in the first week or two. Imm. 



and adult, pale flesh pink above, black beneath (in some cases piebald beneath, see 



Fig. 6, PI. X.). 

 Claws, brown. 



LIST OF MATERIAL IN THE ' MORNING'S ' COLLECTION. 

 M 1, ad. sk. Jan. 19, 1902. 77 S., 167 E. 



M 



do. 

 do. 

 do. 

 do. 

 do. 



77 16' S., 165 E. 

 77 16' S., 167 55' E. 

 67 S., 167 E. 

 77 S., 167 E. 

 77 S., 167 E. 



Nov. 28, 1902. 68 S., 175 E. 



Ross Sea. 



ad. sk. 



M 3, ad. sk. 



M 4, ad. sk. 



M 5, ad. sk. 



M 6, ad. sk. 



M 7, (J , imm. sk. 



M 8, imm. sk. 



M 35, <J , ad. sk. 



M 36, ad. fk. 



M 38, ad. sk. 



M 39, ad. sk. 



M42, ,J,ad. sk. 



M 51, ad. sk. 



M 52, 9 , ad. sk. , 



NOTE ON THE ILLUSTRATIONS. 



Birds Plate IX. represents the changes in the head from hatching to adolescence. Fig. 1. 

 Just hatched, showing the angular prominence used as egg-scale. Fig. 2. About a fort- 

 night old. Fig. 3. Shedding the down. Fig. 4. Immature bird of third month, in the 

 plumage carried for the first year. Fig. 5. Head of normal adult. Fig. 6. Head of 

 isabelline variety, with occipital crest erected. 



Birds Plate X. represents the changes in the feet of birds of corresponding age to the heads 

 in the last Plate ; Fig. 6 alone differs in representing a variation in which the sole was 

 piebald instead of black. 



