Giant Phantom Jellyfish

Stygiomedusa gigantea, [a] commonly known as the giant phantom jelly, is the only known species in the monotypic genus of deep sea jellyfish, stygiomedusa. Dec 22, 2025conjure in your mind a giant, deep-sea predator, and i bet there's a colossal squid lurking in there, perhaps with an even bigger sperm whale chasing after it. This ghostly giant is a rare sight.

1 day agoa rarely-seen jellyfish the length of a bus has been spotted lurking deep in the ocean. The giant phantom jellyfish’s arms can stretch a massive 10 metres long, which they. 21 hours agoa deep-sea expedition off argentina's coast has revealed a surprisingly rich marine ecosystem, including a giant phantom jellyfish and potentially dozens of new species..

Jan 8, 2026giant phantom jelly sightings are extremely rare, but recent footage shows this extraordinary deep-sea jellyfish in all its glory. Jan 5, 2026watch rare footage of the giant phantom jellyfish, a 10-meter-long "ghost" that's only been seen around 100 times spooky? Stygiomedusa gigantea, commonly known as the giant phantom jelly, is the only species in the monotypic genus of deep sea jellyfish, stygiomedusa.

The 2022 encounters with giant phantom jellyfish are already changing what we know about this mystical deep-water species, moore adds—particularly the breadth of its ocean habitat.