Catalonian Checklist

These are the opisthobranch mollucs species actually known to be present in the coast of Catalonia (NE Spain) according to Ballesteros et al. (2016) with later modifications to include the taxonomic changes proposed by later published works:

No species from the order Acochlidiacea  Odhner, 1937  are included because at present there are no studies nor reports of this group from Catalan coasts.