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Show 1881.] THE SURVEY OF H.M.S. ' ALERT.' 17 ?. Skeleton. Talcahuano, September 1879. 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 themselves. 76. L A R U S DOMINICANUS (Licht.), Sel. & Salv. Ibis, 1868, p. 189, 1869, p. 284 ; Saunders, P. Z. S. 1877, p. 799. No. 39. 6 ad.: Tom Bay, April 5, 1879. Iris clear grey; eyelids red ; legs olive. _ ,. , No. 17. o* juv.: Cockle Cove, February 14, 1879. Eyes black ; bill black ; legs dark grey. . No. 16. 3 juv.: Tom Bay, March 8, 1879. Ins dark brown ; eyelids black ; bill black ; legs grey. _ .,01070 No. 70. $ in changing plumage : Valparaiso, Angust 13, l»/y. Bill grey with black tip ; eves 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 grev ; legs greenish. . No. . 8'juv.: Puerto Bueno, February 21, 1879. Ins dark brown, the lids black ; feet grey. No. 131. Puerto Bueno, February 20, 1879. Bill black; legs dark grev. _ ,., , • • •> No '. <J: Port Henry, January 28, 1879. Eyelids red ; mdes grey ; bill yellow, tip of lower mandible red ; legs and feet ohve-green; claws black. 77. STERCORARIUS CHILENSIS, Bp.; Saunders, P.Z.S. 1877, p. 800. Lestris antarctica (Less.); Scl. & Salv. Ibis, 1869, p. 284. No. 67. 8 • Straits of Magelham, December 1879. Bill, legs, and feet black ; eyes brown. No. 134. 2 : 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 Bay, 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. 8 juv.: Tom Bav, February 17, 1879. Ins 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 |