Knobbed Whelks, Meridian Leave a reply The Knobbed Whelk (Busycon carica) is the state seashell of Georgia and is often the largest shell found on our beaches. Share This:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email this to a friend (Opens in new window)MoreClick to share on Pocket (Opens in new window)Click to share on LinkedIn (Opens in new window) Related