The margin is divided into 8 pairs of lobes, with deeper notches between pairs. This photo shows 3 sets of lobe pairs. The rhopalia are on small flaps between the 2 lobes of a pair.
The tentacles are in 8 U-shaped groups of 4 rows each, centered between the pairs of lobes. This view from under the bell basically shows that there is such a profusion of tentacles, oral arms, and gonads under the bell that it is hard to distinguish any discrete U-shaped groups!
This view of the underside shows the frilly oral arms. Note that the tentacles are in an extended position. Photo by Dave Cowles at Monterey Bay Aquarium August 2010.
Public Domain Mark Sum Courtesy of life.nbii.gov
NBII images
Category hierarchy: Interactions Among Species | Defense: Poisons & MoreDescription: Sea nettle in an enclosure that is made out of blue glass. Capture device: Canon EOS 30DLocality: Latitude: 3.892955560000000e+001; Longitude: -7.704969939999999e+001