The gonads are borne at the radial canals or where these meet the manubrium.
Four gonads lie in this main body structure, or "manubrium".
When food is taken in through the mouth, it enters the manubrium.
The gonads are smooth or folded and positioned on the walls of the manubrium and sometimes extend onto the radial canals.
In advanced life the manubrium is occasionally joined to the body by bone.
Budding sites vary by species; from the tentacle bulbs, the manubrium (above the mouth), or the gonads of hydromedusae.
The manubrium is a stalk-like structure hanging down from the centre of the underside, with the mouth at its tip.
Underneath the bell there is a central manubrium with the mouth at its tip.
