Species Account

Bornia sebetia (O G Costa, 1830)

Galeommatoidea : Kelliidae

Tebble name: n/a
Smith & Heppell name: Bornia sebetia (O G Costa, 1829)

To size: To 8mm. Shell Structure: Thin but robust. Equivalve: Equivalve. Equilateral: Subequilateral, beaks just in front of the midline. Outline: Subtrigonal, posterior slope long to rounded posterior ventral margin; ventral almost straight; anterior broadly rounded, slightly concave at beaks.

Sculpture: Smooth, with very fine co-marginal lines; some with weak radial creasing at the posterior and anterior ventral margins. Margin: Smooth but weakly crenulate if radial creases are present. Ligament: Internal in a narrow triangular pit beneath the beaks. Hinge: Hinge teeth prominent; RV with a large triangular tooth anterior of ligament pit, a large laminar tooth posterior of pit with a small laminar tooth above; LV with a short vertical laminar tooth anterior, a larger oblique laminar tooth anterior of pit and a single large laminar tooth posterior of pit. Pallial Musculature: Pallial line wide, entire with small secondary pallial scars; adductor scars small. Periostracum: Periostracum persistent, glossy, yellowish to olive in colour. Colour: Shell white.

Distribution & Ecology

Mainly sublittoral. A Mediterranean and southern species not yet in the British fauna but recorded from Portugal.

Depth Range
Continental Shelf (to 200m)

Additional Information & Related Species


Listed are literature citing Bornia sebetia (O G Costa, 1830). Reference containing the species Type Description is highlighted.

Costa O G 1830. Catalogo sistematico e reionato de’testacei delle Due Sicilie Tipografia della Minerva, Napoli. 132pp, 3pls.
McMillian NF 1971. Three lamellibranchs apparently new to Britain. Journal of Conchology. 27: 266.
Van Aartsen JJ 1996. Galeommatacea and Cyamiacea Part II. La Conchiglia. 281: 27-53, + 61.
Van Aartsen JJ 1996. Galeommatacea and Cyamiacea. La Conchiglia. 279: 31-36, + 61.


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Record last modified: 17/05/2016