GEORGETTE DOUWMA / Black sea cucumber (Stichopus chloronotus) on seabed, Indonesia

GEORGETTE DOUWMA / Sea cucumber (Stichopus variegatus) Papua New Guinea

Doug Perrine / Mottled sea cucumber {Stichopus horrens} Galapagos

Florian Graner / Sea cucumber {Stichopus regalis} Josenfjord, Norway

Juergen Freund / Sea cucumber, Phillippines

Juergen Freund / Sea cucumber (Stichopus sp.). Indo-Pacific ocean