A rare deep-sea jellyfish has been spotted swimming in the Gulf of Mexico.
Phillip Trudeau posted a video to YouTube that was filmed by a remotely operated vehicle, 3,330 feet underwater.
The predator, known by its scientific name Stygiomedusa gigantea, has only been spotted some 115 times in the last century.
It owes its alien-like appearance to an umbrella-shaped head to which fours arms are attached.
Each tentacle can grow up to six meters long and is used to capture prey.
The Gulf of Mexico appears to be a hotspot for Stygiomedusa gigantea. In 2010, Professor Mark Benfield from Louisiana State University spotted the bizarre-looking creatures as part of a collaborative project between marine scientists and energy companies.