224 



COMPARATIVE ANATOMY. 



FIG. 184. A, TONGUE, HYOID APPARATUS, AND BRONCHI OF A GKCKO (Phyllo- 

 dactylus europixus) ; B, TONGUE OF Laccrta; C, OF Monitor indicus ; D, OF 

 Emys europaxt. 



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

 X, larynx; Th, thyroid gland; T, trachea; B, bronchi; Lg, lung; M, man- 

 dible ; //, glottis ; ZS, sheath of tongue. 



