Plate 6 



Fig. 1. Lagenipora verrucosa, new species (p. 35). 

 Incrusting ovicelled specimen X 20. 

 Albatross Station D. 2813. 

 2, 3. Lagenipora marginata, new species (p. 36). 



2. Incrusting bi-triserial specimen, X 20, The superior cells 



are operculated. 



3. An example, X 20, with laciniated and expanded peristomes of 



zooecia with long peristomie. 

 Albatross Station D. 2813. 

 4-6. Holoporella quadrispinosa, new species (p. 37). 



4. Two colonies, natural size. 



5. Oriented cells of an incrusting colony, X 20. There are small 



frontal avicularia. 



6. Cumulate zooecia of a colony, X 20. The small frontal avicu- 



laria are buried in the thickness of the frontal. 

 Albatross Station D. 2813 and D. 2815. 

 7-8. Holoporella porosa, new species (p. 39). 



7. Two colonies developed on the same nullipore, natural size. 



8. Portion of a colony X 20, showing the ovicells and some oper- 



culated zooecia. 

 Albatross Station D. 2815. 



67 



