Bill greenish-black. Iris dusky. Feet pale yellowish-orange. All the under parts dull greyish-white, as are the upper parts including the tail; the hind part of the head streaked with dusky, on the back and rump the feathers with a curved marginal band of greyish-brown; primary quills greyish-brown, the outer two darker. At this period the tail is even, each feather narrowly margined with greyish-white. In a male bird the tongue is 10 twelfths long, slender, triangular, tapering to a point, horny beneath, emarginate and papillate at the base. On the palate are five longitudinal ridges. The posterior aperture of the nares is linear, 7 twelfths long. The œsophagus is 4 inches 2 twelfths long, very wide, its average diameter on the neck 4-1/2 twelfths, within the thorax 9 twelfths; it is exceedingly thin and delicate, its muscular fibres scarcely apparent, unless closely examined. The proventriculus is only a quarter of an inch long. The stomach is 9 twelfths long, 8 twelfths broad, its lateral muscles of considerable size, the cuticular lining dense, tough, longitudinally rugous, and of a reddish-brown colour, as in gulls. Contents of stomach and œsophagus, small fishes, one of them 2 inches long. The intestine is 14 inches long, its diameter 1-1/2 twelfths. The cœca are 2 twelfths long, nearly 1 twelfth in diameter. The trachea is 2 inches and 4 twelfths long, its diameter 2 twelfths at the top, diminishing to 1 twelfth; its rings about 105, unossified; its lateral muscles moderate, as are the sterno-tracheal, and single pair of inferior laryngeal. The bronchial half-rings about 25. LITTLE SANDPIPER. _TRINGA PUSILLA_, WILS. PLATE CCCXX. MALE AND FEMALE.