636 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



s 

 s 



-I — i — i — i — i p 



-i — i — i — i- 



-1 1 1 1 1 r- 







* *. 



ZO 30 40 50 



I , I , . I 



STANDARD LENGTH IN MM 



Figure 25.— Relation of head length to standard length. X's represent leptoeephali ; small dots, early metamorphic 

 larvae; large dots, niid-nietamorphic larvae; and circles, late metamorphic larvae to adults. 



-■ — r 



-i — i — i — i — i — i — > — ' — t~p — ■"" 



i ' '  ' i  ' ' ' i   ' ' i 



i i i i i i m 



20 30 40 50 



, I . 



, I 



. I . 



I , 



150 200 250 



STANDARD LENGTH IN MM. 



Figure 26.— Relation of eye diameter to standard length. X's represent leptoeephali ; small dots, early metamorphic 

 larvae; large dots, mid-metamorphic larvae; and circles, late metamorphic larvae to adults. 



