Plate 3 



Page 

 Figs. 1,2. Marssonopora uncif era, new species 30 



1. The incrusting zoarium showing the stoloniferous 



zooeciules; X 20. 

 Albatross Station D. 2319, north of Cuba. 



2. Specimen showing the unguiculate spines and the 



independent existence of the stoloniferous zooeciules 

 which can branch among themselves; X 20. The 

 ovicells are hyperstomial. 

 Albatross Station D. 2167, off Habana, Cuba. 



3. Alderina iiTegularis Smitt, 1873 27 



Normal and ovicelled zooecia; X 20. 

 Albatross Station D. 2405, Gulf of Mexico. 



4. Callopora ienuirostris HinckSflSSO 31 



Portion of the incrusting, ovicelled zoarium showing the 

 ancestrula. The ancestrular zooecia are smaller than 

 the marginal zooecia (not figured) ; X 20. 



Albatross Station D. 2639, Straits of Florida. 

 5,6. Cribrilina lineata, new species 38 



5. Incrusting linear branches; X 20. 



6. View showing structure of the costules; X 85. 

 Albatross Station D. 2152, northwest of Habana Light. 



7. Callopora pumicosa, new species 33 



The incrusting zoarium with some ovicelled and regener- 

 ated zooecia; X 20. The zooecia are dispersed over a 

 porous calcareous pellicle. 



Albatross Station D. 2639, Straits of Florida. 



8. Callopora caudata, new species 34 



The incrusting uniserial zooecia branching at right angles; 



X 20. 

 Albatross Station D. 2319, north of Cuba. 

 9, 10. Callopora curvirostris HinckSjlSQl 32 



9. Incrusting zoarium with small zooecia, some of which 



are regenerated; X 20. The falciform avicularia 

 are embedded in special zooecia. 

 Albatross Station D. 2167, off Habana, Cuba. 



10. Ovicelled zoarium with large zooecia; X20. 

 Albatross Station D. 2319, north of Cuba. 



11. Antroporapustulata, new species. (See also pi. 16, fig. 12.) __ 24 

 Zooecia; X20. 

 Albatross Station D. 2321, north of Cuba. 



168 



