Ji;^. I. — Metamorphosis of Eel Larvae 

 {Anguilla vulgaris). 



The top specimen is a full grown larva before metamorphosis, the 

 two lower ones are elvers. Atlantic west of Dritish Isles; '• Thor" 

 1906; the elvers from Danish wateis. Slightly reduced (fn m 

 Schmidt). 



96] 



