On a new species of the family Triophidae (Gastropoda: Nudibranchia) from the Mediterranean Sea

During fisheries research along the Tuscany coasts of Italy (Tyrrhenian Sea, Mediterranean Sea), a new species of sea slug, Kaloplocamus filosus, was collected at approximately 150 m depth. This species which is very close to Kaloplocamus ramosus (Cantraine, 1835), is described together with a discussion on the family Triophidae. This family contains few Mediterranean species and, on a worldwide basis, several seem to be doubtful and should be reviewed.