1MPEEFECTLY-KN0WN SPECIES OF OSTEACODA 451 



Xestoleberis compressa, p. 442. 



Fig. 10. Shell, seen from right side,! 



Fig. 11. „ „ above, 1 



Fig. 12. Portion of shell-margin, X 210. 



Fig. 13. Antennule of female, 1 



Fig. 14. Antenna of female, J 



Fig. 15. Mandible and palp of female, X 210. 



Fig. 16. Foot of second pair, X 210. 



Fig. 17. „ third pair, X 210. 



Fig. 18. Post-abdomen, X 250. 



Fig. 19. Copulative organ, d , X 250. 



Xestoleberis luxata, p. 441 

 Fig. 20. Sbell, seen from right side, ' 

 Fig. 21. „ „ above, I x 84. 



Fig. 22. „ „ behind, . 



Fig. 23. Muscle-spots, X 210. 

 Fig. 24. Antennule, X 210. 

 Fig. 25. Antenna, X 210. 

 Fig. 26. Mandible and palp, X 210. 

 Fig. 27. Post-abdomen and third foot, X 210. 



Cyprinotus flavescens, p. 440. 



Fig. 28. Shell, seen from right side, , 

 Fig. 29. „ ,, above, 



PLATE XLVII. 



Tracliyleberis scabrocuneata, p. 444. 

 Shell of male, seen from left side, ' 



Fig. 



1. 



Fig. 



2. 



Fig. 



3. 



Fig. 



4. 



Fig. 



5. 



Fig. 



6. 



Fig. 



7. 



. X 53. 

 above, J 



Mandible and palp, X 210. 



Foot of third pair, 2 , X 120. 



Post-abdomen, 2 , X 210. 



Copulative organ, 6 , X 100. 



Portion of shell-margin, anterior, x 84. 



Oythere brunnea, p. 442. 

 Fie. 8. Shell of female, seen from left side, ] 

 lig. 9. „ „ above, J 



