822 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 82 



Owing to the nature of the material all of the figures are more 

 or less diagrammatic, all to the same scale except figs. 6, 10 and 13. 



Fig. 1. Myosoma spinosa Robertson, portion of zoarium, zoid, stolon 

 and very young zoid. Note diagonal position of tentacle 

 ring. 



Pedicellina ccrnua (Pallas), a fertile internode with zoid; 

 the spines are irregular in distribution and often wanting. 

 Barentsia gracilis (M. Sars), fertile internode and zoid; 

 the stalk is often twice as long as that figured. 

 Barentsia geniculata Harmer, short, wide basal bulb, mus- 

 cular joints, comparatively small calyx. 



Barentsia ramosa (Robertson), -details of joints and form 

 of calyx. 



The same, habit sketch to show mode of branching. 

 Barentsia rohusta new species, showing large calyx, tall 

 basal bulb and short internode (often shorter than the 

 basal bulb), and attachment of bulb to stolon. 

 Barentsia discreta (Busk), large calyx; very elongate inter- 

 node with "pores" for its entire length. 



Barentsia suhrigida new species, stalk walls thin and flex- 

 ible except at the base of the lower internode; the propor- 

 tions of the two internodes are very constant. 



Fig. 10. Barentsia (jorhunoi'i Kiuge, habit sketch of branch, inter- 

 nodes without septa and three sizes of basal bulbs. 



Fig. 11. The same, details of part of branch, with medium and 

 small basal bulbs. 



Fig. 12. The same, giant basal bulb at base of large branch, drawn 

 to the same scale as fig. 11. 



Fig. 13. Coriella stolonata Kluge, habit sketch of erect branch 

 formed of connate stolons. 



Fig. 14. The same, details of zoid ; note that the basal bulb arises 

 from a cup-shaped process of the fertile internode. 



