Elliptical surf clam (Spisula elliptica)
|Researched by||Susie Ballerstedt||Refereed by||Admin|
|Other common names||Elliptical trough shell||Synonyms||-|
A broadly oval shell, equilateral with fine concentric grooves and clear growth stages, which can reach up to 3 cm in length. The umbones are midline and turned inwards and slightly forwards. The shell is a dirty white with a brown or greeny brown periostracum. The fused cardinal teeth of the left valve form a distinctive A-shape that extends more than half way down the hinge plate. The lateral cardinal teeth have distinct serrations along their interlocking faces.
Recorded distribution in Britain and IrelandCommon around most coasts of Britain and Ireland.
Global distributionExtends from arctic Norway and Iceland south to the English Channel.
HabitatCommon in mixed soft substrata offshore to approximately 100 m.
- The shell is broadly oval and up to 3 cm in length.
- The valves have fine concentric grooves and clear growth stages.
- The shell is dirty white with a greeny brown periostracum.
- The cardinal teeth of the left valve form a distinctive A-shape.
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Last Updated: 17/10/2005