New England Neptune shell (public domain image on Wikipedia).
Official State Shell of Massachusetts
Massachusetts designated the New England Neptune shell (Neptuna lyrata decemcostata) as the official state shell in 1987. All Aquatic-Life Symbols
New England Neptune shell (public domain image on Wikipedia).
Massachusetts designated the New England Neptune shell (Neptuna lyrata decemcostata) as the official state shell in 1987. All Aquatic-Life Symbols