Fissurella morrisoni
NameFissurella morrisoni
Scientific NameFissurella morrisoni
Common NameMorrison's Keyhole Limpet
FamilyFissurellidae
GenusFissurella
Speciesmorrisoni
Geographic DistributionEastern Pacific Ocean, specifically along the coast of California, USA.
Habitatintertidal
Shell Shapeconical
Average Size (mm)15-25 mm in length
Identifying FeaturesDistinctive keyhole-shaped apical foramen; strong, often irregular, radial ribs; conical profile; purplish-brown coloration.
Raritycommon
Author CitationMcLean, 1970
Description
A small, conical marine gastropod shell, commonly known as a keyhole limpet, characterized by its oval base and a distinctive keyhole-shaped apical opening. The shell exhibits prominent radial ribbing and a purplish-brown coloration. It is typically found attached to rocky substrates in intertidal zones.
