254 



COMPARATIVE ANATOMY 



FIG. 204. A, TONGUE, HYOID APPARATUS, AND BRONCHI OF A GECKO (Phylo- 

 dactylus europaus) ; B, TONGUE OF Lacerta ; C, OF Monitor indicus ; D, OF 

 Emys europcm ; E, OF AN ALLIGATOR. 



Z, tongue ; ZK, body of hyoid ; VH and HH, anterior and posterior eornua of 

 hyoid ; K, larynx ; Th, thyroid ; r J\ trachea ; B, bronchi ; Lg, lung ; J/, 

 mandible ; L, glottis ; ZS, sheath of tongue. 



