1872-.] 



ANATOMY OF THE HIPPOPOTAMUS. 



187 



at once to the mouth. It is remarkable that while the palate, 

 tongue, larynx, trachea, and oesophagus have all been described! 

 the space intervening between the tongue and the oesophagus should 



Fig. 1. 



Tongue, larynx, and trachea of Hippopotamus, two-thirds natural size. 

 A. Eoot of tongue. B. Epiglottis. C. Arytenoid cartilages. 



have been passed over almost in silence. Gratiolet* pays but 

 little attention to it; and Dr. Crisp merely notes the similarity 



* L J- PP- 3 °7-315. He speaks of the epiglottis being applied to the palate 

 so as effectually to separate the pharynx from the mouth, but does not seem to 

 contemplate the possibility of its being used as I have suggested 



