Leiosolenus aristatus (Dillwyn, 1817)
Florida to N. Brasil, Caribbean.
Portugal & W. Mediterranean to Canarias & Sénégal.
Specimens from Pacific could belong to an other species (Simone & Goncalves: “Anatomical study of Myoforceps aristatus…, Papéis Avulsos de Zoologia 46.6, 2006).
Málaga, Andalucia, S. Spain. 30mm.
Original taxon: Mytilus aristatus.
Synonyms: bipenniferus, caudigera, curviroster, ropan etc.
At low tide, on rocks, Málaga. 28-30mm.
E. Pacific “aristatus” from Cedros island, Baja California, W. Mexico. Bored in a large Haliotis fulgens Philippi. 18mm.

Shell sub-cylindrical, rounded at the hinge, and armed at the opposite extremity with two beak-like processes which cross each other. – L. W. Dillwyn: A descriptive catalogue of recent shells vol. I, London 1817, via BHL.

Large specimens collected at 0,50m deep, in rocks, Puerto Mazarrón, Murcia, S. Spain. 30,5-32,5mm.

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