PLATE 12. 



Fig. 1. Diphyes bojani. Lateral view of base of a very young specimen 6 mm. long, showing 

 the bud for the future inferior nectophore (N^), and a single well-developed group of appendages with 

 large terminal siphon (S). X about 25. 



Fig. 2. ? Muggiaea kochii. Lateral view of much expanded nectophore. X about 12. 



Fig. 3. Dorsal view of base of same specimen, showing the termination of the lateral ridges (R. 1) 

 some distance above the actual margin. 



Fig. 4. Ventral view of base of same. 



Fig. 5. Diphyopsis mitra. Base of stem of a large example, showing the young inferior necto- 

 phore (N2). X about 35. 



Fig. 6. Chuniphyes multidentata. Base of stem, showing pedicular canal of inferior nectophore 

 (C. Ped^), of superior nectophore (C. Ped'), and base of somatocyst (So). X about 15. 



Fig. 7. Diphyabyla hubreehti. Lateral view of superior nectophore, 7 mm. long. 



Fig. 8. Bassia bassensis. Free Eudoxid ("Sphenoides austraUs"). Lateral view. X 12. 



