184 



Part III. — Eighteenth Annual Report 



Lepeophtheirus pectoraHs, Mull. 



Fig. 26. Female, dorsal view, . . . . . x 7 '5. 



Fig. 27. Male ,, . . . . . . x 16. 



Fig. 28. Mandible ....... x 253. 



Fig. 29. Sternal fork . . . . . . x 80. 



Fig. 30. Posterior foot-jaw . . . . . x 53. 



Fig. 31. Foot of fourth pair . . . . . x 80. 



Lepeophtheirus nbrdmanni (M.-Edw). 



Fig. 32. Female, dorsal view . . . . . . x 33. 



Fig. 33. Antenna . . . . . . . x 20. 



Fig. 34. Mandible . . . . . . x 20. 



Fig. 35. Sternal fork . . . . . . x 20. 



Fig. 36. Posterior foot -jaw . . . . . x 20. 



Fig. 37. Foot of fourth pair . . . . . x 20. 



Lepeophtheirus hippoglossi (Kr. ). 



Fig. 38. Female, dorsal view .... 



Fig. 39. Male 



Fig. 40. Mandible ..... 



Fig. 41. Foot of fourth pair .... 



Fig. 42. Foot of fifth pair . 



L,epeophtheirus thompsoni, Baird. 



Fig. 43. Female, dorsal view . . . . . . x 6*5. 



Fig. 44. Sternal fork . . . . . . x 80. 



Fig. 45. Antenna . . . . . . . x 53. 



x 5. 



x 88. 



x 9. 



x 190. 



PLATE VI. 



Lepeophtheirus hippog/ossi (Kr.). 



Fig. 1. Posterior foot -jaw . . . . . x 26. 



Fig. 2. Sternal fork . . . . . , . x 40. 



Lepeophtheirus stromi, Baird. 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 

 Fig. 



Fig. 

 Fig. 

 Fig. 

 Fig. 



16. 

 17. 



18. 

 19. 



Female, dorsal view 

 One of the palpi . 

 Sternal fork 

 Foot of fourth pair 

 Foot of fifth pair 

 Newly-hatched specimen 



Lepeophtheirus pollachii, Basset-Smith. 



Female, dorsal view 



Male, dorsal view 



Antenna . 



Mandible 



Sternal fork 



Second foot- jaw, female 



Foot of fourth pair 



Lepeophtheirus (?) ol>*curus, Baird. 



Female, dorsal view 

 Antenna . 

 Sternal fork 

 Foot of fourth pair 



x 4. 



x 80. 



x 53. 



x 26. 



x 190. 



x 53. 



x 10. 



x 13. 



x 80. 



x 165. 



x 53. 



x 26. 



x 26. 



x 10. 

 x 80. 

 Enlarged, 

 x 53. 



