2012 Vierna et al. North West Atlantic distribution of Ensis directus

We report current genetic variation of populations of the razor shell Ensis directus (Conrad 1843) (Mollusca: Bivalvia: Pharidae) in native (North American) and introduced (European) ranges using nuclear and mitochondrial sequence-based markers. This dataset is a subset and relates only to ad-hoc sightings mentioned in the report of this species occurring in The Wash.