PLATE IX. 



VIBILIA VIATRIX. 



Fig. 1. The animal from the side ( 6 /i). 

 » 2. The first pair of antenna 1 ( 16 /i)- 



( 12 A)- 



air of jtereiopoda ( 32 /i) 



( 3 7,) 

 ( u /i) 



( ,6 /,) 



10. The dactylus of the same, adult animal ( 8 %). 



11. » » » » » young » C 20 /]). 



12. The first pair of pleopoda ( 25 /i)- 



13. The urus (--,). 



3. 



» 



second » 



4. 



The 



first pa 



5. 



» 



second » 



6. 



» 



third » 



7. 



» 



fifth 



8. 







sixth » 



9. 



)) 



seventh » 



VIBILIA GRACILIS. 



14. The animal from the side (">/,). 



15. The antennae (*%). 



16—18. Star-shaped concrements in the integument ("%)• 



19. The end of the first pair of antennae ( ,00 /j). 



20. The first pair of pereiopoda ( 50 /,). 



21. » second » » » (' >0 I\)- 



22. » third >» » » (»%). 



23. » fifth » »> » ( 30 /,). 



24. The dactylus of the same ( 7, Vi)- 



25. The sixth pair of pereiopoda ( 30 /i)- 



26. » seventh » » » ( 150 /i)- 



27. » first » » pleopoda ( :!0 /i)- 



28. The urus ( 35 /,)- 



