Marine Copepoda 



17k 



Length of female 3 • 6 mm., of male 3 • 09 mm. The rostral processes are long 

 and acute in both sexes, in the young as well as in the adult (Fig. 14). Some- 

 times, as seen specially in the male, the left rostral hook is smaller than the right. 



Fig. 14. Paralabidocera. 

 Front with right eye and rostral hooks of female. 



The lateral lobes of the last thoracic segment are symmetrical in the female; 

 they are broadly rounded, with a small protuberance at the middle of the lateral 

 border, or this may be worn down so that the lateral lobe appears evenly rounded 

 (Fig. 15). 



Fig. 15. Paralabidocera. 

 Hind-body of female from above; sp. Spermatophore. 



In the male, the lateral lobes are very unequal, that on the left side resem- 

 bling the female, though less broadly rounded in side view, sometimes triangular 



Fig. 16. 

 Fig. 17. 



Paralabidocera. 

 Paralabidocera. 



Hind-body of the male from above. 

 Urosome of female in side view. 



and pointed. The right lateral lobe is drawn out into a long spike nearly or 

 quite reaching to the end of the second segment of the urosome (Fig. 16). 

 69085—2 



