1898] GULAR POUCH OF THE GREAT BUSTARD 321 
Fic. 5.—Dissection of the right side of the neck of the Great Bustard, Otis tarda, to show the 
hour-glass-shaped gular pouch. [Drawn by H. Grinvold from the specimen in the British 
Museum.] C. Crop; H. Hyoid; Oe. Oesophagus ; P. Pouch; 7. Trachea; V. Vascular 
tissue, investing the upper part of the pouch. 
