PLATE VIII. 



Figs. 1, 2. Seeolis longicaudata. 



Fig. 1. Male, dorsal surface. 



Fig. 2. Male, ventral surface ; both figures enlarged about four diameters. 



Figs. 3-5. SeROLIS SEPTEMCARINATA. 



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

 Fig. 4. Base of penultimate joint of same appendage. 

 Fig. 5. One of the ambulatory limbs. 



Figs. 6-16. Serolis pallida. 



Fig. 6. Antenna of second pair. 



Fig. 7. Antenna of first pair. 



Fig. 8. Two joints of the filament witli sensory hairs ; more highly magnified. 



Fig. 9. Mandible of left side, lower surface. 



Fig. 10. Terminal portion of left side ; more highly magnified. 



Fis;. 11. First maxilla of ris;ht side. 



Fig. 12. Maxillipede of left side, lower surface. 



Fig. 13. One of the second pair of thoracic appendages. 



Figs. 14, 15. Spines from inner surface of penultimate joint of same appendage; more 

 highly magnified. 



Fig. 16. Third thoracic appendage from right side of mnle. 



