40 



BRITISH HYDKO1D 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, 

 with no tentacles 

 or mouth, but well 

 provided with dart 

 sacks, whose 

 function appears 

 to have relation 

 to either the 

 special protec- 

 tion of the 

 colony, or to be 



Fig. 6 Diagram to show 

 the nature of "Budding." 



(a). Mature polypite. 



(b). Young bud, or "inflation" 

 of the endodenn and ectoderm of 

 parent niouth and tentacles yet 

 to be formed. 



(c). Ccenosarc, or connective 

 parts. 



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 



