An extraordinary deep-sea sighting: The giant phantom jelly

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This ghostly giant is a rare sight. But in November 2021, MBARI researchers spotted this giant phantom jelly (Stygiomedusa gigantea) with the ROV Doc Ricketts 990 meters (3,200 feet) deep in Monterey Bay. The bell of this deep-sea denizen is more than one meter (3.3 feet) across and trails four ribbon-like oral (or mouth) arms that can grow more than 10 meters (33 feet) in length. MBARI’s ROVs have logged thousands of dives, yet we have only seen this spectacular species nine times.