PLECTOGNATHI. 



161 



Orthagoriscus (Schneider), Sunfish. Body com- 

 pressed, deep, short, truncate behind ; jaws un- 

 divided, forming cutting-edges ; dorsal and anal 

 high, pointed ; caudal short and high. 



0. mola. Fig. 241 ; -^n.s. 

 oblongus. 



241 



Tetraodon (Linn.). Globe-fish. Body capable 

 of inflation, partly covered with short spines ; 

 jaws divided by a groove, giving an appearance of 

 four teeth. 



T. Pennantii. Fig. 242 ; J n. s. 

 M 



