Iceland Necklace-shell
NameIceland Necklace-shell
Scientific NameEuspira islandica
Common NameIceland Necklace-shell
FamilyNaticidae
GenusEuspira
Speciesislandica
Geographic DistributionNorth Atlantic Ocean, including Arctic waters, from Greenland and Iceland south to the British Isles and the northeastern United States.
Habitatsubtidal
Shell Shapeconical
Average Size (mm)20-50
Identifying FeaturesIts globose, smooth, thick shell, low spire, large D-shaped aperture, and the presence of an umbilical callus (though not clearly visible in this weathered specimen) are key features. The shell lacks strong sculpture.
Raritycommon
Author Citation(Gmelin, 1791)
Description
A small, globose to subglobose marine gastropod shell, typically whitish or pale, with a smooth surface, a low spire, and a large, D-shaped aperture. The shell in the image is an empty, weathered specimen, showing its characteristic shape and pale coloration, held in a human hand for scale.
