10 to 20 cm wide, with a prominent central dome covered completely by 50 or more solid, pointed porjections and surrounded by a wide annular furrow; 6 to 8 flatly rounded celar lappets in each octant; mouth-arms with numerous small, short appendages among the frilled mouths.

Life cycle and mating behavior

Members of the class Scyphozoa are gonochoric. Life cycle: Egg is laid by the adult medusa which later develops into a free-living planula, then to a scyphistoma to a strobila, and lastly to a free-living young medusa.

Netrostoma is a genus of true jellyfish in the family Cepheidae. They are found in the Indo-Pacific. They are sometimes called crown jellyfish, but this can cause confusion with the closely related genus Cephea or the distantly related species in the order Coronatae.

Species

According to the World Register of Marine Species, this genus includes the following species:

• Netrostoma coerulescens
• Netrostoma dumokuroa
• Netrostoma nuda
• Netrostoma setouchianum