PLATE T. 



Serolis cornuta. 



Fig. 1. Male, natural size. 



Fig. 2. Female, natural size. 



Fig. 3. Immature male, natural size. 



Fig. 4. Terminal joints of one of the anterior antennae to show the sensory hairs (h). 



Fig. 5. Terminal joints of one of the posterior antennae. 



Fig. 6. Isolated joint towards the middle of the flagellum of posterior antenna. 



Fig. 7. Distal half of left mandible, upper surface. 



Fig. 8. Distal half of right mandible, upper surface. 



Fig. 9. Maxilla of second pair of appendages. 



Fig. 10. Same appendage of opposite side to show the occasional asymmetry of the 

 maxillae. 



Fig. 11. Maxillipede. 



Fig. 12. First abdominal appendage of right side. 



Fig. 13. Second abdominal appendage of right side. 



Fig. 14. Third abdominal appendage of right side. 



Fig. 15. Several of tlie hairs fringing the endopodite and exopodite of abdominal 

 appendages. 



Fig. 16. A portion of one of the same ; more highlv magnified. 



