Cnidarian

Big red jellyfish

Tiburonia granrojo

PacificAtlanticIndianSouthernArctic A single ocean

Depth

Mostly 650 to 1,500 m, down to about 2,100 m

Size

Bell more than 1 m wide

Diet

Still unknown

Zone

Twilight zone · 200 – 1,000 m

Key facts

• It has no stinging tentacles. It catches its food with 4 to 7 thick fleshy arms.
• Spotted in 1998 off California, it is named after MBARI’s underwater robot Tiburon. Granrojo means “big red” in Spanish.
• It has been observed from Baja California to Hawaii and Japan.

Verified sources

1. MBARI, Big red jelly
2. Smithsonian Ocean, Big Red Jellyfish

In the game: To observe

In the same zone

Leafscale gulper sharkCentrophorus squamosus Grimaldi scaled squidLepidoteuthis grimaldii Whitecheek lanternsharkEtmopterus alphus Purpleback flying squidSthenoteuthis oualaniensis Ningaloo giant siphonophoreApolemia sp. Giant Arctic copepodCalanus hyperboreus