628 MR. E. W. WHITE ON BIRDS [June 20, 
side. The clutch consists of three eggs; and a remarkable circum- 
stance in connexion with them is, that when they become heavy with 
young all their points are directed inwards to a common centre. 
The eggs, of a very elongated pear-shaped form, have a ground of 
a warm stone-colour, sprinkled over with jet-black spots, which 
cluster somewhat thickly round the blunt end. 
Meas.: axis 50 mill., diam. 36 mill. 
The eggs form a favourite dish with the natives, and are very 
delicate. 
190. Cuaraprivs virernicus, Borkh. 
2. Punta Lara, Buenos Aires, Arg. Rep., Feb. 22, 1881. 
Tris dark. 
Common in the province of Buenos Aires. 
191. AGrauitis cotuarRis (Vieill.). 
9. Punta Lara, Buenos Aires, Arg. Rep., Feb. 18, 1881. 
Iris sepia. 
This bird seems rather rare. 
192. HiMANTOPUS BRASILIENSIS, Brehm. 
©. Punta Lara, Buenos Aires, Arg. Rep., Feb. 23, 1881. 
Iris crimson. 
Met with in flocks abundantly about the lagoons of Buenos Aires. 
193. GAMBETTA MELANOLEUCA (Gm.). 
3. Pacheco, Buenos Aires, Arg. Rep., March 15, 1831. 
Shot in the extensive swamps here. 
194. Ruyncuorps nicra, Linn. 
@. Monte Grande, Buenos Aires, Arg. Rep., Feb. 4, 1882. 
Iris brown. 
This bird is by no means common in Buenos Aires ; but a pair was 
seen skimming along the surface of a lagoon at excessive speed. 
195. STeERNA SUPERCILIARIS, Vieill. 
Q. Itapua, Misiones, Arg. Rep., July 18, 1881. 
Iris brown. 
Of these, three or four were observed wheeling about over the 
river Saima, about a league up it from the Parana. They have a 
sprawling, quick flight, settling now and again on the rocks on the 
edge of the river. Dashing down and skimming the water, they 
dip every now and again for fish, after which they rise high in 
the air. 
196. LARUS MACULIPENNIS, Licht. 
3. Punta Lara, Buenos Aires, Arg. Rep., Feb. 19, 1881. 
@. Pacheco, Buenos Aires, Arg. Rep., March 16, 1881. 
Q. Salto, Buenos Aires, Arg. Rep., Oct. 17, 1881. 
Tris dark brown. 
