Ensis ensis (Linnaeus, 1758)
Solenoidea : Pharidae
To size: To 120mm. Shell Structure: Rather thin, brittle. Equivalve: Equivalve. Equilateral: Inequilateral, beaks at the anterior end. Tumidity: Slender. Outline: Ensiform, narrow , dorsal and ventral margins distinctly and equally curved; anterior rounded, posterior obliquely subtruncate.
Sculpture: Smooth with very fine co-marginal lines. Margin: Inner margin smooth. Ligament: External, a long narrow brown/black band behind the beaks. Hinge: LV with two rather bulbous cardinals and two laminar posterior laterals, one lying above the other; RV with a single laminar cardinal and a single posterior lateral. Pallial Musculature: Pallial sinus U-shaped, separation of posterior adductor scar and pallial sinus greater than length of adductor scar. Anterior adductor scar greatly exceeding length of ligament; pedal retractor muscle posterior to end of ligament. Periostracum: Greenish yellow. Colour: Shell white co-marginally banded reddish brown.
Distribution & Ecology
Continental Shelf (to 200m)
Additional Information & Related Species
Solenoidea : Pharidae
Listed are literature citing Ensis ensis (Linnaeus, 1758). Reference containing the species Type Description is highlighted.
Holme N A 1951. The identification of British species of the genus Ensis Schumacher (Lamellibranchiata). Journal of the Marine Biological Association of the United Kingdom. 29: 639-647.
Holme N A 1954. The ecology of British species of Ensis. Journal of the Marine Biological Association of the United Kingdom. 33: 145-172.
Linnaeus C 1758. Systema Naturae. Editio decima. 1. Regnum Animale Holmiae, Laurentii Salvii. 824pp.
- Conchological Society
of Great Britain & Ireland
Provides resources for understanding, identifying, recording, and conserving molluscs
Check List of European Marine Mollusca
The Marine Life Information Network for Britain and Ireland (MarLIN) provides information for marine environmental management, protection and education. It is a centre of excellence in spatially based and time-series marine biological information and supports good stewardship in the marine environment.
- NBN Gateway
National Biodiversity Network's Gateway. Use it to explore UK biodiversity data, as contributed by participating data providers.
- Malacological Society
- Unitas Malacologica
- Census of Marine Life
MarBEF, a network of excellence funded by the European Union and consisting of 94 European marine institutes, is a platform to integrate and disseminate knowledge and expertise on marine biodiversity, with links to researchers, industry, stakeholders and the general public.