40 



BRITISH HYDRO ID ZOOPHYTES. 



mainly found around 

 the mouth of the shell 

 and are the " snake- 

 like appendages " of 

 Hincks. There is yet 

 another modification. 

 Certain long, linear, 

 worm-like bodies, 

 very contractile, 

 ..&ndad£wm,. with n0 tentacles 

 ectod&vms. or mou th, but well 

 provided with dart 

 sacks, whose 



Fig. 6 — Diagram to show 

 the nature of " Budding." 



(a).— Mature polypite. 



(b). — Young bud, or "inflation" 

 of the endoderm and ectoderm of 

 parent— mouth and tentacles yet 

 to be formed. 



(c). — Ccenosarc : 

 parts. 



or connective 



function appears 

 to have relation 

 to either the 

 special protec- 

 tion of the 

 colony, or to be 

 instrumental in pro- 

 curing food for it. They are not generally 

 distributed, but are found massed together. 

 In some cases (if not in all) the walls of these 

 attenuated worm-like bodies contain dart 

 sacks. The heads appear to have a bi-lateral 

 form. It is possible, as Hincks has pointed 



