THE PIPING PLOVER. 227 



twelfths. The tongue is 5 twelfths long, deeply concave above, fleshy, the 

 tip rounded, thin-edged, and horny. The oesophagus is 2\ inches long, 2 

 twelfths in width, its inner coat longitudinally plicate, as in all the other 

 species. Proventriculus 3 twelfths in breadth, its belt of glandules 5 

 twelfths. The stomach rather small, elliptical, 7\ twelfths long, 6 twelfths 

 in breadth; the lateral muscles large, the epithelium with 24 longitudinal 

 rugoe. Intestine 12 inches long, narrow; the duodenum \\ twelfths in 

 width, the rest uniform, the rectum only being a little enlarged. Coeca 1 

 inch 1 twelfth from the extremity, 1 inch 2 twelfths in length, and § twelfth 

 in breadth. Trachea 1 inch 10 twelfths long, 1^ twelfths in breadth, con- 

 tracting to 1 twelfth; its rings about 70, cartilaginous. Bronchial half rings 

 about 15. Muscles as in the last species. Male. 



Genus II.— APHRIZA, Mid. SURF-BIRD. 



Bill a little shorter than the head, rather stout, compressed, tapering, 

 straightish, being recurvate in a slight degree; upper mandible with the dor- 

 sal line straight, and a little declinate as far as the middle, then concave, and 

 towards the end convex, the nasal grooves extending to near the end, the 

 ridge rather broad and flattened, the tip compressed and bluntish; lower 

 mandible with the angle rather long and narrow, the dorsal line ascending, 

 and slightly convex, the sides grooved for half their length, convex toward 

 the end, the tip narrowed, but blunt. Nostrils sub-basal, linear, near the 

 margin. Head rather small, ovate, rounded in front; neck of ordinary length; 

 body rather full. Feet of moderate length, rather stout; tibia bare at the 

 lower part, and reticulated; tarsus roundish, with small angular scales all 

 round, those on the fore part larger; toes four, with numerous scutella, the 

 first very small, and placed higher, the anterior toes free to the base, distinct- 

 ly margined on both edges, flat beneath, the inner considerably shorter than 

 the outer. Claws rather small, curved, compressed, blunted. Plumage full, 

 soft, rather dense, on the neck and lower parts blended. Wings very long, 

 narrow, and pointed; first primary longest, inner secondaries much elongat- 

 ed. Tail rather short, even, of twelve moderately broad feathers. Name 

 from 'Apgst, foam; and |«», to live. 



