GROWTH AND LIFE HISTORIES 



73 



Fig. 33. A, first nauplius of Cyclops fuscus 

 (Copepoda), dorsal view. 



towards the adult form, as found in the Notostraca and Anostraca 

 (figs. 34A-B) or there may be a number of very different stages 

 involved. 



The nauplius of a copepod, such as Calanus, may moult five 

 times, still retaining the nauplius form. At the next moult it will 

 change into a copepodid, which is similar to the adult, except that 

 it is not sexually mature, and the limbs are not fully developed. 



Fig. 33. B, newly hatched nauplius of Balanus (Cirri- 

 pedia), dorsal view. 



