AVES SPHENISCID^E. 



II I 



Aptenodytes demersa (nee Linn.), Abbott, Ibis, 1860, p. 336 (Falkland Isl.). 

 Eudyptes magellanica Gray, Hand-List B. III. p. 99, no. 10799 (1871). 

 Spheniscus demerstis var. rnagellanicus, Coues, Proc. Acad. Philad. 1872, 



p. 211 (Tierra del Fuego); Milne Edwards, Ann. Sci. Nat. (6) IX. 



art. IX. p. 63 (1880). 

 Sphenisctis trifasciatus Philippi, Zeit. ges. Naturw. (2) VII. p. 121, pis. i, 



2 (1872: Valdivia, Chile). 



GENERAL DESCRIPTION. 



Size (adult male). --Total length, about 28 inches. 



Bill : Gape to tip, 2.8 inches. 



Exposed oilmen, 2.15 inches. 



Wing (from shoulder to tip), 9.0 inches. 



Tail, 1.4 inches. 



The adult female is appreciably smaller than the adult male. 



FIG. 65. FIG. 66. 



mm 



w&ft 



s! "^ 



f 



"&W 

 pital 



Spheniscus magcllanicus. Profile head and 

 neck, natural size. 



Spheniscus magellanicus. Head from above. 

 *A natural size. 



Color (adult). The coloring throughout is much like that of S. hum- 

 boldti, but there is an additional band of brownish black across the lower 

 neck, between the dark area of the throat and the curved pectoral band. 

 This brownish black band is broad and clearly denned, and connects with 

 the dark area of the upper parts. 



Wing (flipper) : Above as in S. humboldti, and below white, dotted 

 with many spots of black. This last marking varies much in individuals, 

 being almost or quite obsolete in some examples. 



