49 



HALIAETUS. SEA-EAGLE. 



Bill nearly as long- as the head, very deep, com- 

 pressed, straight, with a long curved tip : upper man- 

 dible with a broad bare membrane or cere at the base, 

 its dorsal outline nearly straight until towards the end, 

 where it forms about the third of a circle, the ridge 

 convex, the sides flattish and slightly sloping, the edges 

 sharp and overlapping, nearly straight, with a slight 

 festoon, the tip deflected, trigonal, acute, at its lower 

 part perpendicular to the gape-line ; lower mandible 

 with the angle medial, rather narrow, rounded, the dor- 

 sal line slightly convex, the ridge rounded, the sides 

 slightly sloping outwards, the edges sharp, inflected, 

 straight until near the tip, which is obliquely truncate 

 and rounded. 



Mouth of ordinary width ; palate flat, with two lon- 

 gitudinal prominent lines ; upper mandible concave 

 within, the lower more deeply so ; the palatal slit de- 

 fended by acute papillae, the glottis also papillate be- 

 hind. Tongue papillate at the base, short, fleshy, slight- 

 ly concave above, rounded at the extremity with a shal- 

 low notch. (Esophagus wide, dilated about the mid- 

 dle, so as to form a rather large single crop ; and at 

 the lower part gradually enlarged and glandular, the 

 cylindrical glandules forming a broad belt. Stomach 



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