Species Account

Tellina tenuis da Costa, 1778

Tellinoidea : Tellinidae

Tebble name: Tellina tenuis (da Costa)
Smith & Heppell name: Angulus tenuis (da Costa, 1778)

To size: To 19mm. Shell Structure: Thin, solid. Equivalve: Inequivalve, RV larger, more convex. Equilateral: Inequilateral, beaks behind midline. Tumidity: Flattened. Outline: Ovate, posterior shortened, wedge-shaped and curves to the right when viewed from dorsal side. Anterior gently sloping and broadly curved at anterior margin. Contour: Miniscule posterior gape.

Sculpture: Fine concentric lines and growth ridges. Margin: Smooth. Ligament: Prominent mid-brown band extending less than a third the way to the posterior margin. Hinge: 2 cardinals in each valve. In LV anterior bifid, posterior very weak. In RV posterior bifid. 2 laterals in RV, anterior short but prominent, posterior small, below nymph plate. 1 short posterior lateral in LV. Pallial Musculature: Pallial sinus very deep, extends upwards and almost to anterior adductor and is confluent with the pallial line. Cruciform muscle scars visible. Periostracum: Thin, satin. Colour: White/pink/orange/yellow external colouration more intense and covering more of the shell.

Distribution & Ecology

A burrower in sand and silty sand. Lives from the mid intertidal to approximately 10m. Widely distributed around all coasts.

Depth Range
Continental Shelf (to 200m)

Additional Information & Related Species

Key Features & Similar Species

Overlaps with T. fabula but lacks the scissulate sculpture, is not so narrow and less acute posteriorly.

Related Species


Listed are literature citing Tellina tenuis da Costa, 1778. Reference containing the species Type Description is highlighted.

da Costa E M 1778. Historia Naturalis Testaceorum Britanniae London: Millan, White, Elmsley & Robson. 254pp, 17pls.


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Record last modified: 11/05/2016