AVES PUFFINID^. 



137 



THALASSCECA ANTARCTICA (Gmelin). 



Antarctic Petrel. Lath. Gen. Syn. III. pt. 2, p. 400 (1785). 



Procellaria antarctica, Gm. Syst. Nat. I. p. 565 ( 1 788) ; Pelz. Reis, Novara, 

 Vog. p. 147 (1865: Straits of Magellan). 



Thalassceca antarctica, Scl. & Salv. Nomencl. Av. Neotr. p. 149 (1873: 

 Straits of Magellan); Salvin, Cat. Bds. Brit. Mus. XXV. p. 392 (1896: 

 Cape Horn); Sharpe, Hand-List Bds. I. p. 125 (1899); Martens, 

 Hamb. Magalh. Sammelr. Vog. p. 19 (1900: Falkland Islands); 

 Sharpe, Rep. Coll. Nat. Hist. "Southern Cross," Aves, p. 143 (1902). 



FIG. 8 1. 



FIG. 82. 



Thalassceca antarctica. Profile of head. 

 From material in the British Museum. } 

 natural size. 



Thalassceca antarctica. Head from above. 

 From material in the British Museum. ^ 

 natural size. 



GENERAL DESCRIPTION. 



Size. Adult male. Total length, about 17 inches. 



Wing, 12 inches. 



Tail, 4.2 inches. 



Bill, 2.0 inches. 



Tarsus, 1.7 inch. 



Color. Adult male. General color upper parts brown, with white 

 areas ; the lower parts white with brown areas. 



Head : Brown, shading into paler on the sides. 



Neck: Above brown, paler on the sides. Below, throat pale brown, 

 with white bases to the feathers ; lower neck white. 



