PLATE 7. 



Fig. 1. Muggiaea atlantica; lateral view of nectophore. X 12. 



Fig. 2. Diphyes bojani; colony with two nectophores still connected. The superior nectophore 

 shows wing-like expansions of the ridges in the upper j of their course. X about 8. 



Fig. 3. Diphyes bojani. Superior nectophore of another specimen, without wings. X 5. 



Fig. 4. Diphyes spiralis. Lateral view of superior nectophore strongly contracted. X 15. 



Fig. 5. Diphyes appendiculata. The two nectophores still connected. X 6. 



Fig. 6. Diphyes appendiculata. Superior nectophore of same colony detached, to show con- 

 formation of base. 



Fig. 7. Diphyes contorta. Dorsal view of superior nectophore, to show dorsal facet. X 10. 



Fig. 8. Diphyes contorta. Lateral view of superior nectophore, showing asymmetrical somato- 

 cyst. X 10. 



Fig. 9. Diphyopsis mitra. Lateral view of superior nectophore. X 8. 



All figures from photographs. 



