2. PLATE XT. 



DAIRELLA LATISSIMA. 



Fig. 1. The male from the side ('-,). 



» 2. The first pair of antennse. (^ ('-s j). 



B 3. The second » » » (f P ^y 



» 4. The labrum. o^ ('"" i)- 



» 5. The rigbt raandible. d" ("" O- 



» 6. The first pair of maxilla;. c^ ('"■* i)- 



» 7. The second » >: » o^ ('""/i)- 



» 8. The maxillipeds from the inner side. c^ C^'" i)- 



w 9. The first pair of perfeopoda. ef (*''/i)- 



» 10. The dactylus of the same pair. (^ ("*• j). 



w 11. The fourth pair of perseopoda. ef ('" i)- 



» 12. The dactylus of the same pair. c^ ('***, V)- 



» 13. The seventh pair of perseopoda. ef C^" i)- 



» 14. The first pair of pleopoda. ef ("*.'i)- 



o 15. The head and the first three peraonal segments of a young male. (-^/,)- 



» 16. The female from above ("•,). 



» 17. The first pair of antenn». 9 (*" i)- 



» 18. The dactylus of the first pair of persopoda. $ (""/])■ 



» 19. Branchial vesicle and ovitectrix from the third pair of perseopoda (-*,,). 



» 20. The urns. ? (-ä',). 



DAIRELLA CALIFORNICA. 



21. The female from the side (i-/,). 



22. The first pair of antennse. ? ('"/j). 



23. The first pair of perseopoda. $ (*",'])• 



24. The second» » » $ {-°'i)- 



25. The dactylus of the same pair. $ ("*" i)- 



26. The third pair of peraspoda. ? ("^ i)- 



27. The dactylus of the same pair. $ (^"o j). 



28. The fifth pair of perseopoda. $ (^/i). 



29. The dactylus of the same pair. $ (-"*/i). 



30. The seventh pair of perseopoda. $ ("* i)- 



31. The dactylus of the same pair. $ (-^/j). 



32. Coupling spines from the first pair of pleopoda. $ (^Ji)- 



33. The urus. $ (-*i). 



