200 PATAGONIAN EXPEDITIONS I ZO6LOGY. 



LARUS MACULIPENNIS Lichtenstein. 



Gabiota blanca, Azara, Apunt. III. p. 363 (1802: Paraguay). 



Lams maculipennis, Licht. Verz. Doubl. p. 83 (1823: Montevideo); Scl. 

 & Salv. Nomencl. Av. Neotr. p. 148 (1873: Argent. Rep.); Durnf. 

 Ibis, 1876, p. 165 (Montevideo); id. Ibis, 1877, p. 43 (Pot Harbour, 

 Chupat Valley, Dec. breeding), p. 202 (Baradero, April) ; id. Ibis, 

 1878, p. 405 (Lake Colgaupe : Sengel River, breeding); Saunders, 

 P. Z. S. 1878, p. 201 (Chupat Valley); id. Journ. Linn. Soc. XIV, 

 p. 399 (1878); Gibson, Ibis, 1880, p. 163 (Cape San Antonio, 

 Buenos Ayres) ; White, P. Z. S. 1882, p. 628 (Punta Lara, Feb. : 

 Pacheco, March: Salta, Oct.); Burm. An. Mus. Nac. Buenos Aires, 

 III. part X. p. 248 (1888: Coast of Patagonia); Withington, Ibis, 

 1888, p. 472 (Lomas de Zamora, very abundant); Scl. & Huds. 

 Argent. Orn. II. p. 198 (1889) ; Oust. Miss. Sci. Cap Horn, Oiseaux, 

 p. 308 (1891) ; Saunders, P. Z. S. 1891, p. 373 (Buenos Ayres, eggs) ; 

 Huds. Natural, in La Plata, p. 66 (1892); Holland, Ibis, 1892. p. 

 213 (Estancia Espartilla, common resident, breeds in Nov.); Aplin, 

 Ibis, 1894, p. 211 (Montevideo Bay, Oct., April and May); Holland, 

 Ibis, 1895, p. 216 (Estancia Sta. Elena); Saunders, Cat. Bds. Brit. 

 Mus. XXV. p. 200 (1896: East Patagonia); Holland, Ibis, 1897, P- 

 287 (Estancia Sta. Elena, breeding), Scl. t. c. p. 312 (Vina del Mar: 

 Aranco: Laraqueti) ; Schalow. Zool. Jahrb. Suppl. IV. p. 657 (1898; 

 Cavanche) ; Sharpe, Hand-List Bds. I. p. 140 (1899) ; Martens, Hamb. 

 Magalh. Sammelr. Vog. p. 17 (1900: South Patagonia); Gates, Cat. 

 Bds. Eggs, Brit. Mus. I. p. 297 (1901). 



Xema (Chroicocephala] cirrhocephalum, Darwin (nee. Vieill.), Voy. 

 "Beagle," Birds, p. 142 (1841 : Bahia Blanca). 



Xema cirrhocephala, Gray (nee. Vieill.), List. B. Brit. Mus. Part III. p. 

 173 (1844: East Patagonia). 



Larus cirrhocephalus, Hartl. (nee. Vieill. ) Ind. Azara, p. 26 (1847) ! Schl. 

 Mus. Pays Bas. VI. Lari, p. 36 (1863: Paraguay); Scl. & Salv. P. 

 Z. S. 1868, p. 146 (Conchitas); Huds. P. Z. S. 1870, p. 802, 1871, 

 p. 4 (Buenos Ayres) ; Sharpe, P. Z. S. 1881, p. 16 (Talcahuano. Sept.) 



Larus serranus, Burm. (nee. Tschudi), Reise La Plata, II. p. 519 (1861 : 

 Entrerios, Mendoz, Parana). 



