PLATE XIV. 



Oithona spinifrons. 



Fig. 1. Rostrum. 



2. Anterior antenna of female. 



3. Posterior antenna. 



4. Mandible and palp. 



5. Maxilla (?). 



6. Anterior foot-jaw. 



7. Posterior foot-jaw. 



8. One of swimming feet. 



9. Abdomen and last thoracic segments of female ; 



(a) fifth foot. 



