320 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 7 



PLATE 47 



Figure 29, Nerinides acuta, anterior end of planktonic larva believed 

 to be of this species, after fixation in formalin, x 240. 



Figures 30 to 37, Boccardia proboscidea: Fig. 30, young larva from 

 cocoon in ventral view, x 240; Fig. 31, a similar though slightly 

 later stage in right lateral view, x 240; Fig. 32, young larva in 

 cocoon attacking a proximal blastula, x 240; Fig. 33, a capsule 

 shortly after laid down, showing double stalk and outline of eggs, 

 x 50; Fig. 34, a 12-segmented, planktonic larva after fixation in 

 Bouin's, X 85; Fig. 35, a 15-segmented larva from plankton, in 

 ventral view, from life, x 85 ; Fig. 36, modified spine from fifth 

 segment of same larva, x 240 ; Fig. 37, a 3-segmented larva from 

 capsule, setae thrust laterally, x 240. 



