Pterynotus radwini Harasewych & Jensen, 1979 (basionym) Timbellus radwini, common name Radwin's murex, is a species of sea snail, a marine gastropod mollusk in the family Muricidae, the murex snails or rock snails.

[1] The size of an adult shell varies between 30 mm and 40 mm.

This marine species can be found in the Caribbean Sea along Belize and Honduras.

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