CCELENTERATA 



/ / // 



II 



Fig. iS6. — Ulmarls prolo/v/^iii (from Ilatschek"). 7, radii of first onlcr (pcrrailii'li 

 II, radii of second order lintcrradii) ; /, marginal lolies; c, oral lobes l^eiU awa)' ein right 

 side); /, tentacles (,aiiradial) ; the gonads (right side) are interradial. 



Fig. 187. — Poh'cloiila froiiilosa* and one of its liranching oral lobes, showing the closed 



groo\'es (\) (after .\gassi.c). 



