Neverita duplicata Sand Egg Collar Shark Eye (Moon Snail)

    The sand egg collars (actually a mixture of mucus, sand and eggs) produced by the Shark Eye Moon Snail [small specimen pictured] are a common fixture on the open Atlantic beaches of northeast Florida.  As the species produces these collars offshore in deeper water, they are usually only found washed ashore following heavy seas.

Neverita duplicata (Say, 1822) Shark Eye Sand Egg Collar

Little Talbot Island, Duval County, Florida 8/14/2004