AVES PUFFINID^. 



137 



Thalassceca ANTARCTICA (Gmelin). 



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



Procellaria antarctica, Cm. Syst. Nat. I. p. 565 (1788); Pelz. Reis, Novara, 

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



TJialassocca aiitarctica, 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. 81. 



Thalassci'ca aiitarctica. Profile of head. 

 From material in the British Museum. ^ 

 natural size. 



Thalassivca aiitarctica. Head from above. 

 From material in the British Museum. ]^ 

 natural size. 



General description. 



Size. Aditlt 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. 



