60 PATAGONIAN EXPEDITIONS I ZOOLOGY. 



Nomencl. Av. Neotr. p. 150 (1873); Durnf. Ibis, 1876, p. 165 



(Montevideo); White, P. Z. S. 1882, p. 629 (Punta Lara, Buenos 



Ay res). 

 Sylbeocyclus dominions, Coues, Proc. Acad. Philad. 1862, p. 232; Scl. & 



Salv. Exotic Orn. II. p. 190 (1869). 

 Tachybaptes dominions, Durnf. Ibis, 1877, p. 203 (Buenos Ayres); 1878, 



p. 405 (Chupat river: Sengelen & Sengel Valleys); Withington Ibis, 



1888, p. 473 (Lomas de Zamora); Scl. & Huds. Argent. Orn. II. p. 



205 (1889); Holland Ibis, 1892, p. 214 (Argentine Republic). 

 Podicipes dominions, Grant, Cat. B. Brit. Mus. XXVI. p. 520 (1898); 



Sharpe, Hand-List B. I. p. 113 (1899); Gates, Cat. Bds. Eggs, Brit. 



Mus. I. p. 134 (1901). 



FIG. 30. 



Podicipes dominions. Male. From material in the American Museum of Natural History. ^ 



natural size. 



GENERAL DESCRIPTION. 



Size (adults in breeding plumage). Total length, 8.5 inches. 



Oilmen (from feathers of forehead), 0.8 to 0.9 inches. 



Wing, 3.70 to 3.85 inches. 



Tarsus, 1.15 to 1.25 inches. 



Color (adults in breeding plumage). General color of upper parts 

 brownish black, with a faint greenish gloss ; of lower parts greyish on the 

 neck, becoming shining polished white on the breast and belly, mottled 

 somewhat with dusky. 



