lightning whelk shell, sinistrofulgur perversum, found on a beach

and animal beach brown busycon busyconidae clams close closeup edible florida food gastropod half invertebrate laying life lightning little marine mollusc molluscs mussels naples nature one oysters person perversum predatory sand scallops sea seashell seashore shell shellfish shore sinistral sinistrofulgur small snail spiral whelk white