AIR-BLADDER 



361 



ap 



Fin. 347. 



Chatoessus. (After Hyrtl, 

 from Gegenbanr.) Oesophagus, 

 a ; stomach, 1> ; and intestine, 

 c; with pyloric appendages, 

 ap and np'. 



FIG. 849. 



Air-bladder of Otolithus sp. 

 (After Giinther.) 



FIG. 348. 

 Air-bladder of Pogonfas chromis, L. (After Giinther.) 



