T. R. GREGG 



235 



ST. 

 NO. 



AGE 

 HRS 

 18° 



EXTERNAL FORM 



18 



65 



MUSCULAR MOVEMENT 



19 



73 



HEART BEAT 



20 



90 



GILL CIRCULATION 

 SWIMMING- HATCHING 



. Fig. 2. (Continued.) 



