Fries's goby
Fries's goby (Lesueurigobius friesii)  is a species of goby native to the Eastern Atlantic Ocean along the coasts of Europe and northern Africa as well as the Mediterranean Sea to the Sea of Marmara. This species burrows into muddy or muddy sand substrates at depths of from  and is frequently found in association with the Norway lobster Nephrops norvegicus. This species can reach a length of  TL. The specific name honours the Swedish zoologist Bengt Fredrik Fries (1799-1839). References

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Fries's goby
Marine fish of Europe
Fish of the North Sea
Fish of the Mediterranean Sea
Marine fish of North Africa
Fries's goby