... four oral lobes and eight trailing arms at the centre of their bell, giving them a body morphology quite unlike that of other free-swimming medusae. The implications of this body morphology on the mechanisms by which thrust is produced are unknown. Here, we determined the wake structure and propulsive...

... and Aequorea to prey. Hydrobiologia 216/217 , 363 -366. Arai, M. N., McFarlane, G. A., Saunders, M. W. and Mapstone, G. M. ( 1993 ). Spring abundance of medusae, ctenophores and siphonophores off southwest Vancouver Island: possible competition or predation on sablefish larvae. Can. Tech. Rep. Fish...