Plate 2 



Figs. 1, 2. Schizopodrella (Stephanosella) biaperta Michelin, 1842 (p. 16). 



1. Portion of an incrusting ovicelled colony, X 20. 



2. Structure of the frontal, X 85, showing the small tremopores. 



Albatross Station D. 2813. 

 3-6. Dakaria sertata, new species (p. 17). 



3. Incrusting zoarium, X 20, showing the frontal of the 



zooecia and the ovicell which have the same structure. 



4. Irregular zooecia in the ancestrular region, X 20. 



5. The zooecia are poorly oriented. The peristome is thick and 



festooned proximally; X 20. 



6. Structure of the frontal with small tremopores, X 85. 



Albatross Station D. 2813, and D. 2815. 

 7-11. Hippomenella parvicapitata, new species (p. 19). 



7. Incrusting specimen, X 20, showing the broad cells some 



of which have no pleurocyst. No dietellae. 



8. An example, X 20, in which the narrow zooecia have 



only a single avicularium. 



9. Specimen, X 20, showing the ancestrula. The irregularity 



of the substratum has determined the development and an 

 abnormal direction of the cells. 



10. View by transparency of the embryo in the ovicell, X 85. 



11. A cell viewed by transparency showing the frontal structure, 



the ovicell, areolar pores and pleurocyst. 

 Albatross Station D. 2813. 



63 



