Xymenopsis muriciformis
NameXymenopsis muriciformis
Scientific NameXymenopsis muriciformis
Common NameNone found (sometimes referred to as an Antarctic rock snail)
FamilyMuricidae
GenusXymenopsis
Speciesmuriciformis
Geographic DistributionSouthern Ocean, including the Antarctic Peninsula, South Georgia, and other sub-Antarctic islands. It is a cold-water species.
Habitatsubtidal
Shell Shapefusiform
Average Size (mm)Typically ranges from 15 to 30 mm in length.
Identifying FeaturesProminent, rounded axial ribs crossed by spiral cords; a distinctive bristly or hairy periostracum (outermost shell layer) which is clearly visible in the image; a relatively short siphonal canal; and its characteristic pale coloration with subtle banding.
Raritycommon
Author Citation(King & Broderip, 1832)
Description
A small to medium-sized marine gastropod, commonly known as a rock snail, characterized by its robust, fusiform shell with prominent axial ribs and spiral cords. The shell is typically pale yellowish-white with subtle brownish banding and often covered by a bristly or hairy periostracum. The animal is seen here underwater, likely on algae or seaweed, extending its siphon and foot.
