64 PATAGONIAN EXPEDITIONS : ZOOLOGY. 



iid. P. Z. S. 1868, p. 146 (Conchitas); iid. Exot. Orn. II. p. 190, 

 part (1869) ; Newt. Ibis, 1869, p. 241, note (Halt Bay) ; Scl. & Salv. 

 t c. p. 284; Cunn. Nat. Hist. Str. Magell. pp. 222, 348 (1871); 

 Huds. P. Z. S. 1872, p. 549 (Rio Negro); Scl. & Salv. Nomencl. 

 Av. Neotr. p. 150, part (1873); Durnf. Ibis, 1877, p. 45 (Chupat 

 river); Gibson, Ibis, 1880, p. 164 (breeding habits); Sharpe, P. Z. S. 



1 88 1, p. 17 (S. Chile; Str. Magellan: Patagonia); White, P. Z. S. 



1882, p. 629 (Alto Parana, Paraguayan coast), 1883, p. 43 (Cosquin, 

 Cardova) ; Salv. t. c. p. 432 (Talcahuano) ; Barrows, Auk, I. p. 317 

 (1884: Lower Uruguay); Scl. & Hudson, Argent. Orn. II. p. 204 

 (1889); Graham Kerr, Ibis, 1890, p. 358 (Rio Pilcomayo); Oust. Sci. 

 Miss. Cap Horn, Oiseaux, p. 233, part (1891) ; Scl. Ibis, 1891, p. 16 

 (Argentine Republic); Graham Kerr, Ibis, 1892, p. 151 (Pilcomayo); 

 Holland, t. c. p. 214 (Estancia Espartilla) ; Schalow, Zool. Jahrb. 

 Suppl. IV. p. 651 (1898: Llanquihue). 



Rollandia micra, Bonap. C. R. xlii, p. 775 (1856). 



Tachybaptus americanus, Bonap. torn. cit. p. 775 (1856). 



Tachybaptus chilensis, Bonap. torn. cit. p. 775 (1856). 



Podiceps rollandii, Leybold (nee Q. & G.) Excurs. Pampas Argentinas, p. 20 



(1873). 

 Podiceps leucotis, Tacz. P. Z. S. 1874, p. 563 (Central Peru). 



Podicipes rollandi, Lane (nee Q. & G.), Ibis, 1897, p. 313 (Chile). 

 Podicipes americanus, Grant, Cat. B. Brit. Mus. XXVI. p. 524 (1898); 



Sharpe, Hand-List B. I. p. 114 (1899); Salvad. Ann. Mus. Genov. 



(2) xx. p. 633 (1900: Punta Arenas, June); Oates, Cat. Bds. Eggs, 



Brit. Mus. I. p. 135, pi. XI. fig. 8 (1901). 



GENERAL DESCRIPTION. 



Size (adults in breeding plumage). Total length, about 1 1.5 inches. 



Oilmen (from feathers of forehead), 0.65 to 0.85 inches. 



Wing, 4.3 to 4.5 inches. 



Tarsus, 1.4 inches. 



Color (adult in breeding plumage). General color above, black with 

 some greenish gloss ; below, except the neck, dull grey with a strong 

 admixture of rufous, and of glossy silk texture. 



Head : Black, with green gloss and an admixture of dull rufous on the 



