53 



Tab. VII, Fig. 17. Troplionia airfira. 



— 18. Do. do.; Borsteliimdter. 



— 19. Do. do.: dorsal Borste. 



— 20. Do. do.; veotral Børste. 



— 21. Brada granulosa. 



— 22. Do. do.; ventral Børste. 



— 23. PotamiUa Mahnc/reni. 



— 24. Do. do.; Forkropjiens simtelformige Bør- 



ster. 



— 25. Do. do.: Forkroppens Kapillærbørster. 



— 26. Do. do.; Forkroppeus Hagebørster. 



— 27. Do. do.; Bagkroppeiis do. 



— 2S. Protula ardica; Skal og Dyr i naturlig 



Størrelse. 



— 2y. Do. do.; Forenden forstørret. 



— 30. Do. do.; Bagenden. 



— 31. Do. do.; første Leds Borste. 



— åJ. Do. do.; Kapillærbørste fra Forkroppens 



andet Led. 



— 33. Do. do.: Kapillferborste fra Bagkroppen. 



— 34. Do. do ; Hagebørster. 



Pl. VII, tig. 17. Trophonia ardica 



— 18. — fascicles of bristles. 



— 19. — dorsal bristle. 



— 20. — ventral bristle. 



— 21. Brada granulosa. 



— 22. — ventral bristle. 



— 23. PotamiUa Malmgreni. 



— 24. — spatulate bristles 



from fore part of bodj-. 



— 25. P. il/a?»i.(/re?M'; capillary bristles from fore 



part of body. 



— 20. P. Malmgreni; uncinate bristles from fore 



•part of body. 



— 27. P. J/a/iHyrewVi'iicinate bristles from hind 



part of body. 



— 28. Protula ardica; shell and animal, na- 



tural size. 



— 29. P. ardica; anterior extremity, magnified. 



— 3o. — posterior extremity. 



— 31. — bristle of lirst segment. 



— 32. — capillary bristle from the 



second segment of the fore part of the 

 body. 



— 33. P. ardica; capillary bristles from liind 



part of body. 



— 34. P. ardica; uncinate bristles. 



Indleveret i Juni 1880. 



Received June 1880. 



Translated into English by John Hazeland. 



