Comb Jellyfish, Ctenphora, Guadalupe Island, Mexico

Six-armed Luzon Starfish, Echinaster luzonicus, Komodo National Park, Indonesia

Comb Jellyfish, Ctenphora, Guadalupe Island, Mexico

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 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

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

(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

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