1881.] THE SURVEY OP H. M.S. 'aT.RRT.' 17 



,y^ 2. Skeleton. Talcahnano, September 187!). 



The last bird still retains traces of white plumage amongst the 

 feathers of the head, while No. 69 is a winter-plumaged bird with 

 white head, on which a few dark feathers are just showing them- 

 selves. 



1^. Larus dominicanus (Licht.), Scl. & Salv. Ibis, 1868, 

 p. 189, 1869, p. 284 ; Saunders, P. Z. S. 1877, p. 799. 



No. 39. cJ ad. : Tom Bay, April 5, 1879. Iris clear grey; eye- 

 lids red ; legs olive. 



No. 17. 6 juv. : Cockle Cove, February 14, 1879. Eyes black ; 

 bill black ; legs dark grey. 



No. 16. <$ juv. : Tom Bay, March 8, 1879. Iris dark brown ; 

 eyelids black ; bill black ; legs grey. 



No. 70. $ in changing plumage: Valparaiso, Angust 13, 1879. 

 Bill grey with black tip ; eyes dark ; legs light grey ; claws black. 



No. . 2 ad. : Peckett Harbour, Straits of Magellan, January 4, 

 1879. Bill yellow, the end of lower mandible red ; eyelids red ; 

 eyes clear grey ; legs greenish. 



No. . (? juv. : Puerto Bueno, February 21, 1879. Iris dark 

 brown, the lids black ; feet grey. 



No. 131. Puerto Bueno, February 20, 1879. Bill black; legs 

 dark grey. 



No. . c? : Port Henry, January 28, 1879. Eyelids red ; irides 

 grey ; bill yellow, tip of lower mandible red ; legs and feet olive- 

 green ; claws black. 



Tl . Stercorarius chilensis, Bp. ; Saunders, P. Z. S. 1877i 

 p. 800. 



Lestris antarctica (Less.); Scl. & Salv. Ibis, 1869, p. 284. 



No. 67. 6 '■ Straits of Magelhsen, December 1879. Bill, legs, and 

 feet black ; eyes brown. 



No. 134. 5 : Talcahuano, September 1879. Eyes dark brown ; 

 legs and feet black. 



78. Spheniscus magellanicus (Forst.) ; Scl. & Salv. Ibis, 

 1869, p. 284; iid. P.Z. S. 1878, p. 653. 



No. 42. Tom Ba}% April 7, 1879. Iris brown; eyelids' edges 

 black, not flesh-colour ; bill horn-colour ; feet in front black mottled 

 with white, behind black all over. 



No. 1. cJ juv.: Tom Bay, February 17, 1879. Iris brown; 

 eyelids black ; bill black; legs grey spotted with black ; claws black. 



No. 128. 2 : Tom Bay, April 5, 1879. Bill horn-colour; iris 

 brown ; legs in front grey spotted with black ; behind black. 



A. Trachea. B. Sternum. 



79. Podiceps rollandi (Q. etG.); Scl. & Salv. Ibis, 1868, 

 p. 189, 1869, p. 84 



No. 13. Summer plumage. Portland Bay, March 20, 1879. 

 Iris red ; bill black ; feet and legs black. 



Proc. Zool. Soc— 1881, No. II. 2 



