Io6 PATAGONIAN EXPEDITIONS: ZOOLOGY. 



"Begins to lay about the first of December, building among fallen 

 rocks by the sea, making nests which are more complete than those of 

 Pygoscelis fcciiiafa, and lining them with dried grass. There are two 

 eggs to a nest, white, with a faint tinge of greenish, obtusely ovoid in 

 shape, and usually one is distinctly larger than the other. The shell 

 is thick, friable, inelastic, and often smeared in parts with calcareous 

 deposit. The external surface is punctured by minute pores, scattered 

 widely apart, but presents no distinct surface-marking." (Natural His- 

 tory of Kerguclen Island, J. H. Kidder, M.D., Bull. No. 3, U. S. Nat. 

 Mus., p. 19, 1876.) 



Genus SPHENISCUS Brisson. 



Type. 



Spheniscus, Brisson, Orn. vi. p. 96 (1760); Hyatt, Pro. 

 Bost. Soc. Nat. Hist. xiv. p. 242 (1872); Ogilvie- 

 Grant, Cat. Bds. Brit. Mus. xxvi. p. 648 (1898); Sharpe, 

 Hand-List Bds. i. p. 119 (1899) S. dcincrstts. 



Dypsiclcs, Gloger, Hand.-u. Hilfsb. p. 476 (1842) ... 5. dcincrsus. 



Geographical Range. — Straits of Magellan, northward, on the west of 

 South America to the coast of Peru and to the Galapagos Islands ; on the 

 east coast of South America to Rio Grande do Sul, Brazil. The Falk- 

 land Islands to the Cape of Good Hope. 



Spheniscus humboldti Meyen. 



SpJienisctts humboldti, Meyen, Nov. Act. Acad. Cass. Leop.-Carol. XVI. 

 Suppl. p. no, tab. 21 (1834); Scl. P. Z. S. 1867, pp. 337, 340 

 (Chile) ; Scl. & Salv. Nomencl. Av. Neotr. p. 151 (1873) ; Reid, Ibis, 

 1874, p. 83 (Juan Fernandez); Salv. Ibis, 1875, p. 377; Bartlett, P. 

 Z. S. 1879, pp. 6-9, figs. I, 2 (habits & moult); Scl. & Salv. Voy. 

 Chall. II. Birds, p. 126 (188 1 : Chile) ; Grant, Cat. B. Brit. Mus. xxvi. 

 p. 650 (1898); Sharpe, Hand-List B. I. p. 119 (1899); Oates, Cat. 

 Bd.s. Eggs, Brit. Mus. I. p. 146 (i 901); Phil. An. Mus. Chile XV. 

 pis. 36 and 37 (1902). 



