Comb Jellyfish, Ctenphora, Guadalupe Island, Mexico

Comb Jellyfish, Ctenphora, Guadalupe Island, Mexico

Comb jelly in blackwater dive at night, West Palm Beach, Florida.

Comb jellyfish, Pembrokeshire, Wales, UK (rr)

Comb jellyfish, Pembrokeshire, Wales, UK (rr)

Comb jellyfish, Pembrokeshire, Wales, UK (rr)

Comb jellyfish, Pembrokeshire, Wales, UK (rr)

A Red-Spot Comb Jelly (Eurhamphaea vexilligera) passes by during a blackwater dive off the Kona coast, the Big Island; Island of Hawaii, Hawaii, United States of America

A tentaculate ctenophore, also known as comb jelly or sea gooseberry (Pleurobrachia sp.), opens its mouth to ingest zooplankton prey during a blackwater dive off the Kona coast, the Big island; Island of Hawaii, Hawaii, United States of America

Arctic comb jelly or sea nut (Mertensia ovum) swimming in front of an iceberg, Tasiilaq, East Greenland

(Mnemiopsis leidyi), the warty comb jelly or sea walnut. Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland

(Mnemiopsis leidyi), the warty comb jelly or sea walnut. Only in springtime, when the hard winter slowly subsides, are the ice-cold waters suitable for divers who can dive around a iceberg that floats in crystal-clear water, Tasiilaq, East Greenland