Patagonian Keyhole Limpet
NamePatagonian Keyhole Limpet
Scientific NameFissurella oriens
Common NamePatagonian Keyhole Limpet
FamilyFissurellidae
GenusFissurella
Speciesoriens
Geographic DistributionSouthern coasts of South America, particularly along Patagonia (Argentina and Chile).
Habitatintertidal
Shell Shapeconical
Average Size (mm)Typically ranges from 40 to 60 mm in length.
Identifying FeaturesThe most prominent identifying feature is the apical, keyhole-shaped foramen (opening). Strong radial ribbing and the typical limpet-like, flattened conical shape are also characteristic.
Raritycommon
Author CitationValenciennes, 1846
Description
A univalve marine gastropod shell, characterized by its low conical or cap-like shape and a distinctive oval or keyhole-shaped opening at its apex. The exterior surface is sculptured with prominent radial ribs.
