DEVELOPMENT 



auu maiiuiuies (m.) \ ueiiniu LUCIII is me tuuiiueuu ui tiie tiiuictx and abdomen 

 (TA) with the anus (A). The rudiments of the first three pairs of ganglia 

 (G, ga%, gm) are seen through the transparent ectoderm. (From Lang's Comp. 

 Anatomy, after Reichenbach.) 



FIG. 100. Nauplius larva of Water-flea (Cyclops), (x about 20 ) 



a, b, c, the three pairs of swimming appendages, representing the antennules, 

 antennae, and mandibles of the Crayfish ; the median eye is seen between the 

 bases of the first pair. (From Gegenbaur's Comb. Anatomy.} 



