PLATE XIII. 

 Figs. 1-7. Balanus corolliformis, n. sp. 



Fig. 1. Tergum, exterior view; magnified \\ diameters. 



Fig. 2. Scutum, exterior view; magnified \\ diameters. 



Fig. 3. Tergum, interior view; magnified \\ diameters. 



Fig. 4. Scutum, interior view ; magnified \\ diameters. 



Fig. 5. Labrum; magnified 20 diameters. 



Fig. 6. Mandible; magnified 20 diameters. 



Fig. 7. Maxilla; magnified 20 diameters. 



Figs. 8-15. Bala ii us hirsutus, n. sp. 



Fig. 8. Group of specimens attached to a spine; magnified 1-J diameters. 



Fig. 9. Tergum, exterior view; magnified 5 diameters. 



Fig. 10. Scutum, exterior view; magnified 5 diameters. 



Fig. 11. Tergum, interior view; magnified 5 diameters. 



Fig. 12. Scutum; interior view; magnified 5 diameters. 



Fig. 13. Labrum; magnified 41 diameters. 



Fig. 14. Mandible; magnified 41 diameters. 



Fig. 15. Maxilla; magnified 41 diameters. 



Figs. 16-22. Balanus rostratus, n. sp. 



Fig. 16. Animal, lateral view; magnified 2 J- diameters. 



Fig. 17. Animal, front view; magnified 2| diameters. 



Fig. 18. Tergum, exterior view; magnified 7i diameters. 



Fig. 19. Scutum, exterior view ; magnified 7h diameters. 



Fig. 20. Tergum, interior view; magnified 1\ diameters. 



Fig. 21. Scutimi, exterior view; magnified 7| diameters. 



Fig. 22. Maxilla; magnified 94 diameters. 



Figs. 23-28. Balanus socialis, n. sp. 



Fig. 23. Group of specimens; magnified 1J diameters. 

 Fig. 24. One of the specimens; magnified 4 diameters. 

 Fig. 25. Tergum, exterior view; magnified 7i diameters. 

 Fig. 26. Scutum, exterior view; magnified 7A diameters. 

 Fig. 27. Tergum, interior view; magnified 7k diameters. 

 Fig. 28. Scutum, interior view; magnified 7 A diameters. 



Figs. 29-33. Balanus tenuis, n. sp. 



Fig. 29. Animal, lateral view; magnified 2 J diameters. 

 Fig. 30. Scutum, exterior view; magnified 1\ diameters. 

 Fig. 31. Tergum, exterior view; magnified 7 \ diameters. 

 Fig. 32. Scutum, interior view ; magnified 7i diameters. 

 Fig. 33. Tergum, interior view; magnified 1\ diameters. 



Fig. 34. Tetraclita coerulescens, Spengler, sp. 



Fig. 34. Tergum, interior view; magnified 4 diameters. 



Figs. 35-38. CJithamalus challengeri, n. sp. 



Fig. 35. Animal, front view; magnified 7| diametese, 

 Fig. 36. Animal, lateral view; magnified 7i diameters. 

 Fig. 37. Scutum, interior view; magnified 13 diameters. 

 Fig. 38. Tergum, interior view; magnified 13 diameters. 



