6o PATAGONIAN EXPEDITIONS : ZOOLOGY. 



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



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



Ayres). 

 Sylbeocychis domiiiiais, Coues, Proc. Acad. Philad. 1862, p. 232; Scl. & 



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

 Tachyhapfes dominicus, Durnf. Ibis, 1877, P- 203 (Buenos Ayrcs); 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 doiiiiiiici/s, Grant, Cat. B. Brit. Mus. XXVI. p. 520 (1898); 



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



Mus. I. p. 134 (1901). 



Fig. ^o. 



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



natural size. 



General description. 



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



Culmen (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. 



