However, the catshark egg case is much smaller than that of the nursehoud. The egg case of a small-spotted catshark and that of a nursehound (described below) can look very similar with their curly tendrils and narrow shape. What To Do If You Find An Injured Animal? Become a citizen scientist this spring by helping us find and record Skate or Whelk egg cases! "These egg cases are laid by the Whelk., a sea snail that eats crabs and other mollusks," according to a Cape Hatteras National Seashore Facebook post. Youll see ad results based on factors like relevancy, and the amount sellers pay per click. Sizes range from 2.1 - 3.8 inches long by 1.3 - 2.0 inches wide, excluding the horns. Lightning Whelk egg case washed up in the wrack line. It is the state shell of New Jersey and Georgia. Seashells of snail, clam, shellfish and conch Seashell and coral sketches with vector sea beach shells of marine snail, clam and conch, mollusk, shellfish, scallop and cockleshell, tiger nautilus and knobbed whelk. Under Add your personalization, the text box will tell you what the seller needs to know. //