PLATE III. 



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9. 

 10. 

 10a, 

 11. 

 12. 

 13. 

 14. 

 15. 



15a. 



16. 



17. 



IS. 



1?. 



20. 



21. 



22. 



23. 



21. 



25. 



26. 



27. 



28. 



29. 



30. 



31. 



32. 



33. 



34. 



35. 



36. 



37. 



38. 



39. 



40. 



41. 



42. 



43. 



44. 



45. 



46. 



47. 



Cellepora puMulata, Busk, 



Cupularia canariensia, Busk, 



Schnaria inaculata. Busk, 



Cellcpora armata, Hincks, var. creda, dot, 



Betepora inagelhnsis. Busk, 



Relepora gigantca, Busk, .... 



ReUpora tessclata, Hincks, var. impcrati, Busk ; section of rooting process, 



Retcpora tcsselata, Hincks, var. impcrati, Busk ; rooting process, 



ReUpora lata, Busk ; section of calcareous structure, showing lacunar on tlie right, 



Retepora columni/era. Busk ; section showing zoarial pareiichym cord, . 



Retepora columni/era. Busk ; section showing zoarial pareuchym cord, . 



Retepora columni/era, Busk ; ovicell calcined, .... 



Retepora cellulosa, L. , Naples ; showing gland-like sacs at the side, 



Retepora cellulosa, L. , Naples; double sac, .... 



Cellepora pertusa, Smitt, Red Sea ; showing verruiform gland-like bodies, 



Lcpralia margariti/era, Quoy and Gaimard ; contents of avicularian chamber, show 



bodies and the protoplasmic mass, ..... 

 Lcpralia margariti/era, Quoy and Gaimard ; section of the larger body, 

 Lepralia margariti/era, Quoy and Gaimard, 

 Selenaria maciilala, Busk ; lower part of vibraculum, 

 Bi/axaria submucronata, ]5usk ; operculum, 

 Foveolaria clliptica. Busk ; operculum, 

 Aspidostoma gigantca. Busk ; avicularian mandible, 

 Aspidostoma gigantca. Busk ; operculum, 

 Meliccrita atlantica, Busk; operculum, . 

 Elcctra cylindracea, Busk ; mandible, 

 Meliccrita dnhia. Busk ; operculum, 

 ilonoporella capensis. Busk ; operculum, . 

 Smittia delicatuhi. Busk, 



Cupularia canaricnsis. Busk ; base of vibraculum, 

 Diporxila hastigera. Busk ; mandible, 

 Diporula hastigera, Busk ; operculum, 

 Lcpralia mucronata, Busk ; operculum, . 

 Sehizoporclla ritrca, MacGillivray; operculum, . 

 Lcpralia occlusa. Busk ; operculum, 

 Lepralia occlusa, Busk ; mandibles, 

 Lepralia occlusa, Busk, .... 

 Meliccrita dubia. Busk ; reduced from sketch, 

 Lepralia castanea. Busk ; operculum, 

 Lcpralia castanea. Busk ; mandible, 

 ffasivcllia auriculata. Busk ; operculum, 

 Retepora tcsselata, Hincks, var. impcrati. Busk ; operculum, 

 Retepora lata. Busk; operculum, . 

 Cellcpora armata, Hincks, var. crecta, nov. , operculum, 

 Cellcpora annata, Hincks, var. erecta, nov., mandibles, 

 Cellepora arynata, Hincks, var. erecta, nov. , mandibles, 

 Mucronclla canali/cra, Busk ; operculum, 

 De/rancia siriatula, Busk, 

 Sehizoporclla viirca, MacGillinay, 

 From Station 320 (see page 39), . 



ng double gland-like 



Diam. 



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X 6 



X 25 



X 12 



