THE HAUNTS OF LIFE 



surface forms 

 of both these 

 types) ; there 

 are many 

 siliceous 

 sponges, but 

 no calcareous 

 ones ; there 

 are sea-ane- 

 mones and 

 some related 

 corals and 

 very decora- 

 tive Alcyona- 

 rians ; Anne- 

 lids and some 

 other 'worms' 

 burrow in the 

 ooze ; Echi- 

 n o d e r m s 

 abound — 

 starfishes, 

 brittle - stars, 

 sea urchins, 

 sea -cucum- 

 bers, and 

 sea-lili es 

 swaying on 

 their stalks 

 Kke daffodils 

 by the lake- 

 side ; Crusta- 



PiQ. 29. — ^Three Pennatulids 

 with very long stalks. 

 I. Chunella ; II. Puniou- 

 lina ; III. UmbeUula. 



