PLATE VII. 



Fig. 1. Serolis 2icdlida, iemale ; magnified two diameters. 



Figs. 2-7. Serolis minuta. 



Fio-. 2. Male : maQ;uified about uiue diameters. 



Fig. 2'. Abdominal sterna and appendages ; b, penial filament. 



Fig. 3. Third thoracic appendage of male, right side. 



Fig. 4. Antenna of first pair. 



Fig. 5. Antenna of second pair. 



Fig. 6. One of the ambulatory limbs. 



Fig. 7. Spines fringing the penultimate joint of the second thoracic appendage. 



Figs. 8-10. Serolis longicaudata. 

 Fie:. 8. Sterna of last thoracic and three first abdominal segments. 

 Fig. 9. Antenna of first pair. 

 Fig. 10. Antenna of second pair. 



