Distinguishing Characteristics |
Bivalve (2 shells); shell elongate, elliptical, thin and fragile, inflated; shell color white; strong radial ridges of nodules; anterior edge of shell flips up and over beak (the protoplax and mesoplax); no 12 partitions above beak; a spoon-shaped projection (apophysis) on the underside of the beak, hollow at upper end; 2 really small muscle scars underneath shell, the pallial line arcs out and downward from posterior muscle (pallial sinus), makes a turn anteriorly at shell's edge (soft V shape), and follows shell edge to anterior muscle. |
Similar Species |
Similar to the Campeche angelwing but the sculpture of the shell is weaker in the Campeche angelwing and it has 12 partitions above the beak (absent in the angelwing). |
Habitat |
Bay, bore into the mud |
Maximum Size |
17.7 cm (7 in) |
Other Common Names |
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Previous Scientific Names |
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Comments |
Can bore into wood, clay, shale and rocks. |