On black turban snail.
AKA Common Hairy Triton
2nd photo shows mantle.
Outer Banks, NC.
Layers of Hooked Slippersnails on a Brown Turban Snail.
The Neotaenioglossa is an taxonomic name for a large group of mostly sea snails. The name was originally created by Haller in 1882. Ponder and Warén (1988), and Marquet (1997), assigned this name to the superorder Caenogastropoda. ITIS considers the order Neotaenioglossa to be a synonym of Cerithioidea Férussac, 1819 .