PHYLUM CCELENTERATA 



i°3 



differs in different forms, more particularly as regards the 

 umbrella. There is always a manubrium, with gastric 



Fig. 47. — Bougainvillea ramosa. A, entire colony, natural size; B, portion of the 

 same magnified ; C, immature medusa ; cir. c, circular canal ; cu, cuticle or 

 perisarc ; ent. cav, enteric cavity ; hyd t polype or hydranth ; hyp, hypostome or 

 manubrium ; med, medusa; mnb, manubrium ; rad. c, radinl canal ; /, tentacle ; 

 v, velum. (From Parker's Biology, after Allman.) This is closely allied to the 

 New England B, super cilians. 



