Phacellophora camtschatica

click on image for more illustrations

Seen throughout the coastal Pacific Ocean, occasionally in other locations.
Coastal environments.
300-600 mm bell diameter, as adults.
Specializes in eating other gelatinous prey, such as other medusae.
Useful Facts or Characters: 

Central yellowish gonad surrounded by clear or milky whitish bell.  16 groups of long tentacles.

Natural History: 

Commonly called the fried egg jellyfish or the egg yolk jellyfish. Has a mild sting. Generally hangs motionless in the water with their tentacles trailing behind.  Often infested with amphipods or juvenile crabs.