sea shell pearl trochus niloticus on a white background

trochus isolated nature white sea ocean tropical pearl shell spiral marine trochidae topshaped tegulidae shells striped silver texture pearly buttons operculum tectus niloticus close up animal design mediumsized color colorful life ecology polish mollusca closeup cut top haliotis discus object disk abalone fishing seafood decoration wildlife aquatic shellfish commercial seashell value haliotidae