Lesson #8 - Deep-sea Cnidarians POWERPOINT
The Giant Jellyfish Stygiomedusa gigantea• Giant deep-seajellyfish in familyUlmaridae• Only 115 sightings inlast 110 years; rarelyseen• One of largestdeep-seapredatoryinvertebrates• Color - umbrella & oralarms: pinkish-purple• Geographic range – believedworldwide; observed and filmedoff Pacific coast of United Statesby scientists and by ROVs offJapan coast and Gulf of MexicoImage credit: MBARI/NOAA
The Giant Jellyfish –Physical Description• Umbrella-shapedbell up to meterwide• 4 "paddle-like" arms- up to 10 meterslong• Arms lack stingingtentacles; used totrap preyImage – A Giant jellyfish trapsA fish in it’s arm.
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The Giant Jellyfish Stygiomedusa gigantea
• Giant deep-sea
jellyfish in family
Ulmaridae
• Only 115 sightings in
last 110 years; rarely
seen
• One of largest
deep-sea
predatory
invertebrates
• Color - umbrella & oral
arms: pinkish-purple
• Geographic range – believed
worldwide; observed and filmed
off Pacific coast of United States
by scientists and by ROVs off
Japan coast and Gulf of Mexico
Image credit: MBARI/NOAA
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