Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
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Gary Bell/ Oceanwide / Tyron's Risbecia (Risbecia tryoni) with commensal Emperor Shrimp (Periclimenes imperator), Milne Bay, Papua New Guinea
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Alex Mustard / Tailing nudibranchs (Hypselodoris tryoni) on colourful sponges. This is a common behaviour in this species, where one individual tracks another, also known as queuing or tailgating. It may be relating...
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Alex Mustard / Portrait of a nudibranch (Hypselodoris tryoni). Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.
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Constantinos Petrinos / Chromodorid nudibranch (Risbecia tryoni) laying a red egg ribbon, Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Chromodorid nudibranch (Risbecia tryoni) laying a red egg ribbon, Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Chromodorid nudibranch (Risbecia tryoni) laying a red egg ribbon, Lembeh Strait, North Sulawesi, Indonesia.
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Linda Pitkin / Nudibranchs (Risbecia tryoni), trailing behaviour 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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Georgette Douwma / Nudibranch (Risbecia tryoni) pair together, Lembeh Strait, North Sulawesi, Indonesia.
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Georgette Douwma / Nudibranch (Risbecia tryoni) pair moving along together, Mabul, Malaysia.
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Georgette Douwma / Nudibranch (Risbecia tryoni) pair moving along together, Mabul, Malaysia.
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Franco Banfi / Nudibranch ( Risbecia tryoni) at Three sisters dive site, Farondi Island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean
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Juergen Freund / Nudibranchs (Risbecia Tryoni) mating. Lembeh Strait, North Sulawesi, Indonesia.
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Sue Daly / Nudibranch (Risbecia tryoni) Lembeh Straits, Sulawesi, Indonesia
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Sue Daly / Nudibranch (Risbecia tryoni) pair, Lembeh Straits, Sulawesi, Indonesia
Georgette Douwma / Two Nudibranchs {Risbecia tryoni}, mating pair, Rinca, Indonesia.
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Georgette Douwma / Nudibranch {Risbecia tryoni} starting mating. The two purple sausage shaped structures by the gill are the eggs sacs of a parasitic copepod living inside the slug. Rinca, Indonesia
