Fig. 11. 



A. Ohelia. b c d. Medusse of same (c, everted). hU, 

 blastostyle ; coe, common body tissues ; ect, end, ecto 

 and endoderm ; ent, stomach ; gth, generative cap- 

 sules; hth, horny cups, I, lithocyst ; mhd, Medust 

 bud ; mnh, manubrium ; p, horny outer covering ; 

 P 1,2,3, feeding polyps; rad. c, radial canal; t. 

 tentacle ; v, velum. (After Parker and Haswell.) 



