Hiroya Minakuchi / Kunie's Chromodorid Nudibranch (Chromodoris kuniei), Borneo, Malaysia

Hiroya Minakuchi / Nudibranch (Hypselodoris bullockii) pair mating, Borneo, Malaysia

Norbert Wu / Nudibranch (Chromodoris sp) breathes through gills on back, Borneo

Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea

Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea

Gary Bell/ Oceanwide / Nudibranch (Goniobranchus kuniei), Anilao, Philippines

Gary Bell/ Oceanwide / Nudibranch (Chromodoris bullocki), Bali, Indonesia

David Fleetham / Imperial commensal shrimp (Periclimenes imperator / Zenopontonia rex) on Spanish dancer nudibranch (Hexabranchus sanguineus) at night. Philippines.

Franco Banfi / Couple of nudibranchs (Hypselodoris fontandraui) Ponza Island, Italy, Tyrrhenian Sea, Mediterranean

Franco Banfi / Nudibranch ( Risbecia tryoni) at Three sisters dive site, Farondi Island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Franco Banfi / Nudibranch (Glossodoris atromarginata) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Franco Banfi / Nudibranch, (Chromodoris fidelis) Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean