a -- 



ovy. 



-f. 



FIG. 74 STAGES IN THE LIFE-HISTORY OF Hcemocera dance, ONE 

 OF THE MONSTRILLID,E. (From Lankester's "Treatise on 

 Zoology," after Malaquin.) 



A, Free-swimming nauplius larva ; B, embryo after penetrating 

 into the body of the worm Salmacina ; C, D, E, successive stages 

 in the body of the host ; F, free-swimming adult female. (All 

 greatly enlarged, not to same scale.) a', Antennule ; br t brain ; 

 0, nauplius eye ; /, swimming feet; g.s., hairs on which the eggs 

 are carried ; m, position of mouth ; md, hooked mandible of 

 nauplius; M, nerve cord; ov, mass of eggs carried by female; ovy, 

 ovary ; pr, absorptive processes. 



