PLATE ir. 



Figs. 1-4. Serolis latifrons. 



Fig. 1. Seroli'fi latifrons (variety), female. 



Figs. 2, 3. Terminal portions of mandibles, upper surface. 



Fig. 4. Terminal joint of second antennn, with commencement of ilagellum. 



Figs. 5-13. Serolis schythei. 

 Fig. 5. A single joint from the filament of anterior antenna ; h, sensory hair. 

 Fig. 6. Three joints from filament of posterior antenna in male. 



Fig. 7. Spines from the inner surface of penultimate joint of second thoracic appendage. 

 Fig. 8. Third thoracic appendage of male. 

 Fig. 9. One of the ambulatory limbs. 

 Fig. 10. Masillipede. 

 Fig. 1 1 . Upper lip. 



Figs. 12, 13. Distal end of mandibles, upper surface. 

 Fig. 14. Serolis septemcarinata, nerve cords and ganglia. 



