Mitrocomella polydiademata
I’ve mistaken this jelly for a Mitrocomia cellularia (Cross Jelly) more than a few times. But these jellies often have a pinkish tinge to them (particularly around the edge of their bell margin) and they tend to be much more fleshy and are generally smaller. For more information and photos please see inaturalist. Claudia Mills has provided some excellent ID photos!