https://www.marcoislandshellclub.com/catalog/p/small-lightning-welks-sinistrofulgur-perversum
Small Lightning Whelks (Sinistrofulgur Perversum) — Marco Island Shell Club
Small Lightning Whelk shells from Marco Island. Each approximately 1.5 inches long.
sinistrofulgur perversummarco islandsmalllightningwhelks