Coralliophila trigoi (Gastropoda: Muricidae), a new species from the northeastern Atlantic Ocean

Based on shell characters and with further support from molecular data, Coralliophila trigoi, a new species of gastropod of the family Muricidea, is here described from the northeastern Atlantic Ocean. The new taxon, consisting of several specimens mainly collected along the Atlantic Spanish coast, has previously been misidentified in the literature as Coralliophila basilea (Dautzenberg and H. Fisher, 1896). Coralliophila trigoi new species is conchologically similar to Coralliophila meyendorffii (Calcara, 1845), and Coralliophila panormitana (Monterosato, 1869), but it can be easily separated from them mainly because it is differently sculptured. The new species is compared with other members of the genus Coralliophila from the same geographical area and Mediterranean Sea. Molecular sequencing of the internal transcribed spacer 2 region (ITS2) of the nuclear rDNA and part of the mitochondrial gene for 12S rDNA confirm the validity of the new species.