Franco Banfi / Commensal / Glass anemone shrimp (Periclimenes brevicarpalis) on Sea anemone, Pura Vida House Reef, Dumaguete, East Negros Island, Central Visayas, Philippines, Pacific Ocean.
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Nature Production / Commensal crinoid shrimp (Periclimenes amboinensis) cleaning Wrought-Iron butterflyfish (Chaetodon daedalma) Chichijima, Ogasawara Islands UNESCO World Heritage Site, Japan
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Linda Pitkin / Emperor shrimp (Periclimenes imperator / Zenopontonia rex), commensal with Amberfish Sea cucumber (Thelenota anax) Lembeh Strait, North Sulawesi, Indonesia.
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Georgette Douwma / Commensal emperor shrimp (Periclimenes imperator / Zenopontonia rex) hitching a ride on a Nudibranch (Risbecia tryoni). Lembeh Strait, North Sulawesi, Indonesia.
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Georgette Douwma / RF - Nudibranch (Risbecia tryoni) with commensal Emperor shrimp (Periclimenes imperator / Zenopontonia rex). Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights ma...
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Alex Mustard / Commensal emperor shrimp (Periclimenes imperator / Zenopontonia rex) scuttles across the skin of its host sea cucumber, Dauin, Dumaguete, Negros, Philippines. Bohol Sea
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Pascal Kobeh / Commensal shrimp (Periclimenes tosaensis) in Mushroom coral (Heliofungia actiniformis) Sulu Sea, Philippines
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Pascal Kobeh / Transparent commensal / Magnificent anemone shrimp (Periclimenes magnificus) on an Anemone tube (Cerianthus sp) Sulu Sea, Philippines
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Pascal Kobeh / Pink anemonefish (Amphiprion perideraion) in Magnificent sea anemone (Heteractis magnifica) with Holthuis commensal shrimps (Periclimenes holthuisi) Philippines. Sulu Sea.
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Pascal Kobeh / Commensal shrimp (Periclimenes magnificus) on Sea pen (Pteroeides), Manado, Indonesia. Sulawesi Sea.
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Franco Banfi / Commensal shrimp (Periclimenes amboinensis) on feather star or crinoid, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean
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Juergen Freund / Nudibranch (Ceratosoma teneu) with a Imperator commensal shrimp (Periclimenes imperator / Zenopontonia rex) hitchhicker Raja Ampat, West Papua, Indonesia