in the Egyptian Tantalus. 503 



of a bird that feeds on large living animals, having a very ob- 

 vious augmentation of the trachea. As in the spoonbill also, in 

 which the formation of the lower portion of the trachea is the 

 same, the inferior larynx of our bird is deficient, as are likewise 

 the muscles, and consequently it is found to produce few varia- 

 tions of sound. 



Neither the adjutant, the largest of the Grallatores, nor the 

 stork, heron, pelican, gannet, corvorant, or loon, has any such 

 structure. Of the jabiru and albatross I cannot speak with any 

 certainty. 



VOL. XVI. 3t XXX. a Sup 



