Distinguishing Characteristics |
Bivalve (2 shells); shell elongate, irregular margins; color chalky white; beaks about 1/3 back from anterior end; posterior end with weak radial ridge, may look scaly; weak, irregular concentric growth lines; small clam. |
Similar Species |
The mossy ark has irregular shaped margins but has distinct beaded ridges. |
Habitat |
Gulf and hypersaline bays; bores into soft rock, mud, sand or existing crevices |
Maximum Size |
2.5 cm (1 in) |
Other Common Names |
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Previous Scientific Names |
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Comments |
Shape is highly variable because of its boring habits. |