Phialopsis diegensis
Distribution:
Off San Diego, California; South Atlantic and South Pacific.
Habitat:
0-300 m
Size:
20-30 mm bell diameter, as adults.
Useful Facts or Characters:
It is 3-4 times as wide as high and bears 16-28 tentacles.
References:
Torrey, H.B. (1909) The Leptomedusae of the San Diego Region. University of California Publications in Zoology 6: 11-31.