226 PATAGONIAN EXPEDITIONS : ZOOLOGY. 



Family Stercorariid/e. 



Saunders, Cat. Bds. Brit. Mus. XXV. p. 314(1896). 

 Sharpe, Hand-List Bds. I. p. 143 (1899). 



Genus MEGALESTRIS Bonaparte. 



Type. 



Catharacta Briinn. Orn. Bor. p. 32 (1764) . . . . M. cataryhactes. 



Lestris, Illiger, Prodr. p. 272 (181 1 : part). 



Cataractcs, Fleming, Phil. Zool. p. 263 (1822) . . . M. cataryhactes. 



Steycorayiits, Vieill, N. Diet. d'Hist. Nat. XXIII. p. 154 

 (1819) et auct. (part). 



Cataryacta, Bp. Naum. 1854, p. 210 M. antarctica. 



Megalestris, Bp. Cat. Parzudaki, p. 11 (1856); Saun- 

 ders, Cat. Bds. Brit. Mus. XXV. p. 314 (1896); 

 Sharpe, Hand-List Bds. I. p. 143 (1899) . . . M. catayyJiactes. 



Buphagus, Coues, Pro. Acad. Nat. Sci. Phila. 1863, p. 



125, ex. Moehring (1752) M. catayyJiactes. 



Geogyaphical Range. — North and South Atlantic Ocean, the Southern 

 Indian Ocean, the Antarctic regions, the seas about New Zealand. 



Megalestris chilensis (Bonaparte). 



Stercoyayiiis autaycticns, Des Murs in Gay's Hist. Chil. Zool. I. p. 481 

 (1847) ; Phil. & Landb. Cat. Av. Chil. p. 47 (1868). 



Catayyacta catayyactes, Licht. Nomencl. Av. Mus. Berol. p. 99 (1854: 

 Chile). 



Lestyis antarctica, Scl. & Salv. (nee Less), Ibis, 1869, p. 284 (Sta. Mag- 

 dalena, Straits of Magellan). 



Steycoyarius chilensis, Saunders, P. Z. S. 1876, p. 323, pi. XXIV. 1877 

 p. 800 (Straits of Magellan) ; id. Voy Chall. II. p. 140 (1880: Eliza- 

 beth Isl); Sharpe, P. Z. S. 1881, p. 17 (Talcahuano, Sept.: Straits 

 of Magellan); Oust. Miss. Sci. Cap Horn, Oiseaux, pp. 172, 332 

 (1891: Santa Cruz, Patagonia, Nov.). 



Megalestyis chilensis, Saunders, Cat. Bds. Brit. Mus. XX. p. 318 (1896); 

 Schalow, Zool. Jahrb. Suppl. IV. p. 655 (1898; Coquimbo, Oct. : Sao 



