Sue Daly / Tub gurnard (Trigla lucerna) resting on the seabed, Sark, British Channel Islands, UK, August.
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Sue Daly / Tub gurnard (Trigla lucerna) swimming and resting on the seabed, showing use of finger like pectoral fins, Sark, British Channel Islands, UK, August.
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Franco Banfi / Tub gurnard (Trigla lucerna) on sea floor, Flatanger, Norway, North Atlantic Ocean.
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Tony Wu / Red gurnard (Chelidonichthys spinosus) juvenile, Kanagawa, Japan.