Atlantic Petricolid

Atlantic Petricolid  (also called "New World Petricolid")
Choristodon robustus (G.B. Sowerby I, 1834)
Family Veneridae

The "Atlantic Petricolid" also named "New World Petricolid" is a small white shell with rad ribs.

New World Petricolid collected on S. Hutchinson Island January 2021


Interior view

Shell size to 24 mm; shell with sculpture of coarse radial ribs crossed by narrower commarginal lines, gaping posteriorly. Beaks point anteriorly. Color dirt white to light gray. Bores into limestone rock or live corals. Formerly known as Rupellaria typica, or Petricola typica, and previously in the family Petricolidae. Specimen found by Dr. Jim Scatterday within a dead coral skeleton just east of Bowman's Beach, Sanibel Island.


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